CVE-2020-13882
Medium
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.
SeverityMedium
CVSS4.2
Exploit probability—
Product
Cisofy Lynis
PublishedJun 18, 2020
First seenJun 18, 2020
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisofy lynis | v < 3.0.0 | 3.0.0 |
| fedoraproject fedora | 31, 32 | — |
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