| tiêu đề | Local Privilege Escalation in polkit's pkexec |
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| Mô tả | 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
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| Nguồn | ⚠️ https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt |
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| Người dùng | misc (UID 3) |
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| Đệ trình | 26/01/2022 07:12 (cách đây 5 những năm) |
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| Kiểm duyệt | 26/01/2022 07:15 (3 minutes later) |
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| Trạng thái | được chấp nhận |
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| Mục VulDB | 191603 [polkit /usr/bin/pkexec nâng cao đặc quyền] |
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| điểm | 19 |
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