CVE & CISA-KEV Catalog

CVE-2020-13882

MEDIUM
4.2
CVSS v3
NVD

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.

How to fix

Remediation Available
lynisDebian
Fixed in:3.0.0-1CVE-2020-13882
Fixed in:3.0.0-1CVE-2020-13882
Fixed in:3.0.0-1CVE-2020-13882
Fixed in:3.0.0-1CVE-2020-13882

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityLow

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Exploit Intelligence

0.26%probability of exploitation in 30 days
17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

Vendor Advisory1
Third-Party Advisory1

Related Vulnerabilities

Other CWE-367 (TOCTOU Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-36980High8.183%-Fix
CVE-2024-30088High7.068%KEV + RansomFix
CVE-2004-0594Medium5.155%-Fix
CVE-2024-50379Critical9.844%-Fix
CVE-2023-38146High8.839%-Fix
CVE-2024-0132Critical9.037%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.