CVE-2021-3429

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:canonical:cloud-init:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:21

Type	Values Removed	Values Added
References	~~() https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668 - Patch~~	() https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668 - Patch

04 May 2023, 13:00

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CWE		CWE-532
References	~~(MISC) https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668 -~~	(MISC) https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668 - Patch
CPE		cpe:2.3:a:canonical:cloud-init::::::::

20 Apr 2023, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-04-19 22:15

Updated : 2025-02-05 15:15

NVD link : CVE-2021-3429

Mitre link : CVE-2021-3429

CVE.ORG link : CVE-2021-3429

JSON object : View

Products Affected

canonical

cloud-init

CWE

CWE-532

Insertion of Sensitive Information into Log File

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