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Vulnerability · Published Jun 18, 2020 · Assigned by mitre

CVE-2020-13882

Medium 4.2

In plain English

A medium-severity security flaw in the lynis package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.2Medium
Exploit odds (30 days)0.3%top 82.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

CISOfy Lynis before 3.0.0 has Incorrect Access Control because of a TOCTOU race condition. The routine to check the log and report file permissions was not working as intended and could be bypassed locally. Because of the race, an unprivileged attacker can set up a log and report file, and control that up to the point where the specific routine is doing its check. After that, the file can be removed, recreated, and used for additional attacks.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12lynis3.0.0-1DEBIAN-CVE-2020-13882
Debian:13lynis3.0.0-1DEBIAN-CVE-2020-13882
Debian:14lynis3.0.0-1DEBIAN-CVE-2020-13882

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References