[CVE-2022-42917] In FRRouting FRR before 8.5, the service user (usually frr)

CVE-2022-42917 | CVSS: 6.7 | 严重级别: MEDIUM

In FRRouting FRR before 8.5, the service user (usually frr) can escalate its privileges to root by monitoring the configuration directory (/etc/frr) and replacing config files upon creation with, for example, symlinks to change the ownership of arbitrary files. This is a TOCTOU Race Condition caused by a combination of touch and chown.

参考链接:
https://bugzilla.suse.com/show_bug.cgi?id=1204124
https://frrouting.org/security/cve-2022-42917/
https://github.com/FRRouting/frr/commit/972cdc560e339d70c0ee5fb70ec636ab78f00bca

📌 数据来源: NVD 官方

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