CVE-2022-42917
Last modified
CVE-2022-42917 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| FRRouting | FRRouting | < 4.5 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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