Detections
Analytics

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : PAM-PKCS#11 vulnerabilities (USN-7363-1)

critical Nessus Plugin ID 233057

Language:

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7363-1 advisory.

 Marcus Rckert and Matthias Gerstner discovered that PAM-PKCS#11 did not properly handle certain return codes when authentication was not possible. An attacker could possibly use this issue to bypass authentication. This issue only affected Ubuntu 24.04 LTS and Ubuntu 24.10. (CVE-2025-24531)

 It was discovered that PAM-PKCS#11 did not require a private key signature for authentication by default.
 An attacker could possibly use this issue to bypass authentication. (CVE-2025-24032)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected libpam-pkcs11 package.

See Also

https://ubuntu.com/security/notices/USN-7363-1

Plugin Details

Severity: Critical

ID: 233057

File Name: ubuntu_USN-7363-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/20/2025

Updated: 3/20/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.4

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:P

CVSS Score Source: CVE-2025-24032

CVSS v3

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 6

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpam-pkcs11, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.10

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 3/20/2025

Vulnerability Publication Date: 2/10/2025

Reference Information

CVE: CVE-2025-24032, CVE-2025-24531

USN: 7363-1