collabora online 通过用户控制密钥绕过授权机制

CVE编号

CVE-2021-32744

利用情况

暂无

补丁情况

N/A

披露时间

2021-07-22

漏洞描述

Collabora Online is a collaborative online office suite. In versions prior to 4.2.17-1 and version 6.4.9-5, unauthenticated attackers are able to gain access to files which are currently opened by other users in the Collabora Online editor. For successful exploitation the attacker is required to guess the file identifier - the predictability of this file identifier is dependent on external file-storage implementations (this is a potential "IDOR" - Insecure Direct Object Reference - vulnerability). Versions 4.2.17-1 and 6.4.9-5 contain patches for this issue. There is no known workaround except updating the Collabora Online application to one of the patched releases.

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://github.com/CollaboraOnline/online/security/advisories/GHSA-32xj-9x82-q9jw

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	collabora	online	*		Up to (excluding) 4.2.17-1
	运行在以下环境
	应用	collabora	online	*	From (including) 6.4.0	Up to (excluding) 6.4.9-5

CVSS3评分 7.5

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CWE-ID 漏洞类型 CWE-639 通过用户控制密钥绕过授权机制