CVE-2020-11932lowCWE-532

CVE-2020-11932: low-severity vulnerability in Canonical Subiquity

Subiquity server installer logged LUKS full disk encryption password

Published · Updated

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 2.3epss 0.6%
exploitation probability
0.6%top 53% of all CVEs
observed exploitation
nono source reports it
In short

The Subiquity Ubuntu Server installer accidentally recorded the LUKS disk encryption password in its logs. This means the password could be exposed if someone accessed the installer logs, compromising the security of the encrypted disk.

Technical detail

CWE-532 (Insertion of Sensitive Information into Log File) vulnerability where LUKS full disk encryption passwords entered during installation were written to plaintext log files. An attacker with read access to installer logs could extract the password, bypassing disk encryption protections. The vulnerability requires the user to set up LUKS encryption during installation.

Summary generated and translated by AI from the official description.
It was discovered that the Subiquity installer for Ubuntu Server logged the LUKS full disk encryption password if one was entered.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Affected products
Canonical · Subiquity
References
https://aliceandbob.company/the-human-factor-in-an-economy-of-scale/https://github.com/CanonicalLtd/subiquity/commit/7db70650feaf513d7fb6f1ca07f2d670a0890613