| 标题 | Local Privilege Escalation in polkit's pkexec |
|---|
| 描述 | CVE-2021-4034
Local Privilege Escalation (from any user to root) in polkit's pkexec, a SUID-root program that is installed by default on every major Linux distribution
PoC:
https://haxx.in/files/blasty-vs-pkexec.c
Countermeasure:
If no patches are available for your operating system, you can remove the SUID-bit from pkexec as a temporary mitigation; for example:
# chmod 0755 /usr/bin/pkexec
|
|---|
| 来源 | ⚠️ https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt |
|---|
| 用户 | misc (UID 3) |
|---|
| 提交 | 2022-01-26 07時12分 (5 年前) |
|---|
| 管理 | 2022-01-26 07時15分 (3 minutes later) |
|---|
| 状态 | 已接受 |
|---|
| VulDB条目 | 191603 [polkit /usr/bin/pkexec 权限提升] |
|---|
| 积分 | 19 |
|---|