中危 debian shadow 特权管理不恰当
CVE编号
CVE-2017-20002利用情况
暂无补丁情况
官方补丁披露时间
2021-03-17漏洞描述
The Debian shadow package before 1:4.5-1 for Shadow incorrectly lists pts/0 and pts/1 as physical terminals in /etc/securetty. This allows local users to login as password-less users even if they are connected by non-physical means such as SSH (hence bypassing PAM's nullok_secure configuration). This notably affects environments such as virtual machines automatically generated with a default blank root password, allowing all local users to escalate privileges.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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374 | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957 | |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html |
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 | debian | shadow | * | Up to (excluding) 4.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | shadow | * | Up to (excluding) 1:4.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | shadow | * | Up to (excluding) 1:4.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | shadow | * | Up to (excluding) 1:4.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | shadow | * | Up to (excluding) 1:4.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | shadow | * | Up to (excluding) 1:4.2-3.1ubuntu5.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | shadow | * | Up to (excluding) 1:4.5-1ubuntu2 | |||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 N/A
- 服务器危害 服务器失陷
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-269 | 特权管理不恰当 |
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