Every CVE Search/ Get API key

CVE-2020-13882

CISOfy Lynis before 3.0.0 has Incorrect Access Control because of a TOCTOU race condition. The...

4.2 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
High
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.26%Down 0.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 4.2

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.

Record
CVE-2020-13882
CVSS 3.1
4.2 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
CVSS 2.0
3.7 LowAV:L/AC:H/Au:N/C:P/I:P/A:P
Weakness
CWE-367
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2020-13882
Updated
2026-11-02
EUVDEUVD-2020-6090 No score

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.

Record
EUVD-2020-6090
Updated
2026-11-03
GitHub AdvisoriesGHSA-fgc5-qjvv-cffv 4.2

CISOfy Lynis before 3.0.0 has Incorrect Access Control because of a TOCTOU race condition. The...

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.

Record
GHSA-fgc5-qjvv-cffv
CVSS 3.1
4.2 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Weakness
CWE-367
Updated
2026-11-02
OSV 4.2

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.

Record
CVE-2020-13882
CVSS 3.1
4.2 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVDEBIAN-CVE-2020-13882 4.2

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.

Record
DEBIAN-CVE-2020-13882
CVSS 3.1
4.2 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13882 4.2

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.

Record
UBUNTU-CVE-2020-13882
CVSS 3.1
4.2 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVopenSUSE-SU-2024:11032-1 No score

lynis-3.0.5-3.2 on GA media

These are all security issues fixed in the lynis-3.0.5-3.2 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11032-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
lynis
Debian:12
before 3.0.0-1
3.0.0-1
lynis
Debian:13
before 3.0.0-1
3.0.0-1
lynis
Debian:14
before 3.0.0-1
3.0.0-1
lynis
Ubuntu:16.04:LTS
All versions, plus listed versions
2.1.1-1
None known
lynis
Ubuntu:18.04:LTS
All versions, plus listed versions
2.5.0-12.6.0-12.6.2-1
None known
lynis
Ubuntu:20.04:LTS
All versions, plus listed versions
2.6.2-1
None known
lynis
openSUSE:Tumbleweed
From an advisory covering 3 CVEs
before 3.0.5-3.2
3.0.5-3.2

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-13882 is a medium vulnerability (CVSS 4.2) in Cisofy Lynis, published June 18, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. Fixed in lynis 3.0.0-1.

References

Show 10 moreShow less
MoveEnter Open