Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisofy | Lynis | < 3.0.0 |
| Fedoraproject | Fedora | 31 |
Related Weaknesses (CWE)
References
- https://cisofy.com/security/cve/cve-2020-13882/Vendor Advisory
- https://cwe.mitre.org/data/definitions/367.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://cisofy.com/security/cve/cve-2020-13882/Vendor Advisory
- https://cwe.mitre.org/data/definitions/367.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2020-13882?
CVE-2020-13882 is a vulnerability with a CVSS score of 4.2 (MEDIUM). 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 lo...
How severe is CVE-2020-13882?
CVE-2020-13882 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-13882?
Check the references section above for vendor advisories and patch information. Affected products include: Cisofy Lynis, Fedoraproject Fedora.