CVE-2020-12831

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-05-13 · updated 2026-06-17
Weakness: CWE-732

Description

An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7.3.1. When using the split-config feature, the init script creates an empty config file with world-readable default permissions, leading to a possible information leak via tools/frr.in and tools/frrcommon.sh.in. NOTE: some parties consider this user error, not a vulnerability, because the permissions are under the control of the user before any sensitive information is present in the file

Affected products

Linuxfoundation Free Range Routing: through 7.3.1

References

https://bugzilla.redhat.com/show_bug.cgi?id=1830805
https://github.com/FRRouting/frr/pull/6383
https://bugzilla.redhat.com/show_bug.cgi?id=1830805
https://github.com/FRRouting/frr/pull/6383

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