CVE-2021-3429

MEDIUM

Canonical Cloud-init < 21.2 - Log Information Exposure

Title source: rule

Description

When instructing cloud-init to set a random password for a new user account, versions before 21.2 would write that password to the world-readable log file /var/log/cloud-init-output.log. This could allow a local user to log in as another user.

References (1)

Core 1

Core References

Patch patch

https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668

View Patch ZIP pw:eip

Scores

CVSS v3 5.5

EPSS 0.0005

EPSS Percentile 16.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-532

Status published

Products (1)

canonical/cloud-init < 21.2

Published Apr 19, 2023

Tracked Since Feb 18, 2026