高危 cryptopp crypto++ 使用已被攻破或存在风险的密码学算法
CVE编号
CVE-2021-40530利用情况
POC 已公开补丁情况
官方补丁披露时间
2021-09-07漏洞描述
The ElGamal implementation in Crypto++ through 8.5 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | cryptopp | crypto++ | * | Up to (including) 8.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | libcrypto++ | * | Up to (including) 5.6.4-8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | libcrypto++ | * | Up to (including) 8.4.0-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | libcrypto++ | * | Up to (excluding) 8.6.0-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | libcrypto++ | * | Up to (including) 5.6.4-7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | libcrypto++ | * | Up to (excluding) 8.6.0-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | cryptopp-debugsource | * | Up to (excluding) 8.6.0-1.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | cryptopp-debugsource | * | Up to (excluding) 8.6.0-1.fc34 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | cryptopp-debugsource | * | Up to (excluding) 8.6.0-1.fc35 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | cryptopp-debugsource | * | Up to (excluding) 8.6.0-1.el8 | |||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 POC 已公开
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-327 | 使用已被攻破或存在风险的密码学算法 |
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