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VULNERABILITIES

CVE-2021-3429 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA: CISA-ADPCVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668 CVEPatch
https://github.com/canonical/cloud-init/commit/b794d426b9ab43ea9d6371477466070d86e10668 [email protected]Patch

Weakness Enumeration

CWE-IDCWE NameSource
CWE-532Insertion of Sensitive Information into Log File[email protected]
CWE-532Insertion of Sensitive Information into Log FileCISA-ADP
CWE-532Insertion of Sensitive Information into Log File[email protected]

Affected Products

ProductVersions
canonical cloud-init
< 21.2

CPE

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

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-3429
NVD Published Date:
Apr 19, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-3429 Details - Not Deferred