qnap quts_hero 在文件访问前对链接解析不恰当（链接跟随）

CVE编号

CVE-2021-44052

利用情况

暂无

补丁情况

N/A

披露时间

2022-05-06

漏洞描述

An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later

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。

参考链接
https://www.qnap.com/en/security-advisory/qsa-22-16

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	qnap	qts	*	From (including) 4.3.3.0174	Up to (excluding) 4.3.3.1945
	运行在以下环境
	应用	qnap	qts	*	From (including) 4.3.4.0899	Up to (excluding) 4.3.4.1976
	运行在以下环境
	应用	qnap	qts	*	From (including) 4.3.6.0895	Up to (excluding) 4.3.6.1965
	运行在以下环境
	应用	qnap	qts	*	From (including) 4.4.0.0883	Up to (excluding) 4.5.4.1991
	运行在以下环境
	应用	qnap	qts	*	From (including) 5.0.0.1716	Up to (excluding) 5.0.0.1986
	运行在以下环境
	应用	qnap	qts	4.2.6	-
	运行在以下环境
	系统	qnap	qutscloud	*		Up to (excluding) c5.0.1.1998
	运行在以下环境
	系统	qnap	quts_hero	*		Up to (excluding) h4.5.4.1771
	运行在以下环境
	系统	qnap	quts_hero	*	From (including) h5.0.0.1772	Up to (excluding) h5.0.0.1986

CVSS3评分 8.1

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 低
• 影响范围 未更改
• 用户交互 无
• 可用性 无
• 保密性 高
• 完整性 高

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CWE-ID	漏洞类型
CWE-59	在文件访问前对链接解析不恰当（链接跟随）

Exp相关链接

- avd.aliyun.com