Description
In CISOfy Lynis 2.x through 2.7.5, the license key can be obtained by looking at the process list when a data upload is being performed. This license can be used to upload data to a central Lynis server. Although no data can be extracted by knowing the license key, it may be possible to upload the data of additional scans.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | lynis | 3.0.0-1 | — |
| Debian 13 | lynis | 3.0.0-1 | — |
| Debian 12 | lynis | 3.0.0-1 | — |
| Debian 8 | lynis | 1.6.3-1+deb8u1 | DLA-2253-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | lynis | No fix yet | — |
| Ubuntu 18.04 LTS | lynis | No fix yet | — |
| Ubuntu 16.04 LTS | lynis | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | lynis | 3.0.5-3.2 | openSUSE-SU-2024:11032-1 |
Advisories 2
- DLA-2253-1 lynis - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11032-1 lynis-3.0.5-3.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://cisofy.com/security/cve/cve-2019-13033/
- [debian-lts-announce] 20200621 [SECURITY] [DLA 2253-1] lynis security update mailing-list
- FEDORA-2020-f251753b0f vendor-advisory
- FEDORA-2020-059e1591d6 vendor-advisory