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CVE-2021-3429

nvd nist
Published: Apr 19, 2023Modified: Jun 17, 2026

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability: 1.8 / Impact: 3.6
Source: NVD

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.

Affected (1)

Canonical
1 product
Cloud Init
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Cloud Init
Before 21.2

Related CWEs

CWE-532
Insertion of Sensitive Information into Log File
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.

References (2)

Source: security@ubuntu.com
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Patch

Timeline

No history available yet.