CVE-2020-13882 Details

CVE-2020-13882

Published: 2020-06-18
Last Modified: 2020-07-03
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity Low
Base Score 3.7/10
Exploit Score 1.9/10
Access Vector Local
Access Complexity High
Authentication None
Impact Score 6.4/10
Confidentiality Impact Partial
Availability Impact Partial
Integrity Impact Partial
Vector String AV:L/AC:H/Au:N/C:P/I:P/A:P
Common Vulnerability Score System v3.1
Severity Medium
Base Score 4.2/10
Exploit Score 0.8/10
Access Vector Local
Access Complexity High
Privileges Required Low
Impact Score 3.4/10
Confidentiality Impact Low
Availability Impact Low
Integrity Impact Low
Scope Unchanged
User Interaction Required
Vector String CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:a:cisofy:lynis:*:*:*:*:*:*:*:* Yes - 3.0.0
References

https://cisofy.com/security/cve/cve-2020-13882/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/m
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/m

CVE ID
CVE-2020-13882
Published
2020-06-18
Modified
2020-07-03
CVSSv2.0
Low
CVSSv3.1
Medium
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE-367

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