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CVE-2020-13882

CVE information

Published

3 years ago

Last Modified

5 months ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

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..

CVSSv2.0 Score

Severity
Low
Base Score
3.7/10
Exploit Score
1.9/10
Access Vector
Local
Access Complexity
High
Authentication Required
None
Impact Score
6.4/10
Confidentiality Impact
Partial
Availability Impact
Partial
Integrity Impact
Partial

CVSSv3.1 Score

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

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:cisofy:lynis:*:*:*:*:*:*:*:*
  Yes
- 3.0.0
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  Yes
- -