Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
Low
Attack Vector
Local
0

CVE-2020-13882

Disclosure Date: June 18, 2020
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
4.2 Medium
Impact Score:
3.4
Exploitability Score:
0.8
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
Low
Integrity (I):
Low
Availability (A):
Low

General Information

Vendors

  • cisofy,
  • fedoraproject

Products

  • fedora 31,
  • fedora 32,
  • lynis
Technical Analysis