CVE-2020-12831 — Incorrect Permission Assignment in Free Range Routing

CWE-732 — Incorrect Permission AssignmentCWE-276 — Incorrect Default PermissionsCWE-200 — Sensitive Information Exposure7 documents6 sources
Severity
5.3MEDIUMNVD
EPSS
0.3%
top 48.88%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Linuxfoundation Free Range RoutingDebian FRR
Timeline
PublishedMay 13
Latest updateMay 24

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶debiandebian/frr

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-x83m-q23q-xv5j: ** DISPUTED ** An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7↗2022-05-24
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OSV
CVE-2020-12831: An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7↗2020-05-13
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📋Vendor Advisories

2
Red Hat
frr: default permission issue eases information leaks↗2020-05-03
▶
Debian
CVE-2020-12831: frr - An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7.3.1....↗2020
▶

💬Community

2
Bugzilla
CVE-2020-12831 frr: default permission issue eases information leaks [fedora-all]↗2020-06-19
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Bugzilla
CVE-2020-12831 frr: default permission issue eases information leaks↗2020-05-03
▶