中危 libarchive 安全漏洞 (CVE-2023-30571)
CVE编号
CVE-2023-30571利用情况
暂无补丁情况
官方补丁披露时间
2023-05-30漏洞描述
Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.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/libarchive/libarchive/issues/1876 | |
| https://groups.google.com/g/libarchive-announce |
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 | libarchive | libarchive | * | Up to (including) 3.6.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | libarchive | * | Up to (including) 3.3.3-4+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | libarchive | * | Up to (including) 3.4.3-2+deb11u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | libarchive | * | Up to (including) 3.6.2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | libarchive | * | Up to (including) 3.7.2-1 | |||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 管控权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 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-362 | 使用共享资源的并发执行不恰当同步问题（竞争条件） |
Exp相关链接
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