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.

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5864 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5864-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     February 12, 2025                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : pam-pkcs11     CVE ID         : CVE-2025-24032 CVE-2025-24531     Debian Bug     : 1095402

    Two vulnerabilities were discovered in pam-pkcs11, a PAM module which     allows to use PKCS#11 based smart cards in the PAM authentication stack,     which may allow to bypass the authentication in some scenarios.

    For the stable distribution (bookworm), these problems have been fixed in     version 0.6.12-1+deb12u1.

    We recommend that you upgrade your pam-pkcs11 packages.

    For the detailed security status of pam-pkcs11 please refer to its     security tracker page at:
    https://security-tracker.debian.org/tracker/pam-pkcs11

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0689-1 advisory.

    - CVE-2025-24032: default value for `cert_policy` (`none`) allows for authentication bypass (bsc#1237062).
    - CVE-2025-24031: uninitialized pointer dereference caused by user pressing ctrl-c/ctrl-d when asked for     PIN leads to       crash (bsc#1237058).

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. Prior to version     0.6.13, if cert_policy is set to none (the default value), then pam_pkcs11 will only check if the user is     capable of logging into the token. An attacker may create a different token with the user's public data     (e.g. the user's certificate) and a PIN known to the attacker. If no signature with the private key is     required, then the attacker may now login as user with that created token. The default to *not* check the     private key's signature has been changed with commit commi6638576892b59a99389043c90a1e7dd4d783b921, so     that all versions starting with pam_pkcs11-0.6.0 should be affected. As a workaround, in     `pam_pkcs11.conf`, set at least `cert_policy = signature;`. (CVE-2025-24032)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4058 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4058-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     February 18, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : pam-pkcs11     Version        : 0.6.11-4+deb11u1     CVE ID         : CVE-2025-24032

    A vulnerability was discovered in pam-pkcs11, a PAM module which     allows to use PKCS#11 based smart cards in the PAM authentication     stack, which may allow to bypass the authentication in some scenarios.

    For Debian 11 bullseye, this problem has been fixed in version     0.6.11-4+deb11u1.

    We recommend that you upgrade your pam-pkcs11 packages.

    For the detailed security status of pam-pkcs11 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/pam-pkcs11

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

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

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

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0688-1 advisory.

    - CVE-2025-24032: default value for `cert_policy` (`none`) allows for authentication bypass (bsc#1237062).
    - CVE-2025-24031: uninitialized pointer dereference caused by user pressing ctrl-c/ctrl-d when asked for     PIN leads to       crash (bsc#1237058).

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

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

ID	Name	Product	Family	Published	Updated	Severity
233057	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)	Nessus	Ubuntu Local Security Checks	3/20/2025	3/20/2025	critical
216206	Debian dsa-5864 : libpam-pkcs11 - security update	Nessus	Debian Local Security Checks	2/12/2025	2/12/2025	critical
216733	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : pam_pkcs11 (SUSE-SU-2025:0689-1)	Nessus	SuSE Local Security Checks	2/25/2025	2/25/2025	critical
230636	Linux Distros Unpatched Vulnerability : CVE-2025-24032	Nessus	Misc.	3/6/2025	3/6/2025	critical
216405	Debian dla-4058 : libpam-pkcs11 - security update	Nessus	Debian Local Security Checks	2/18/2025	2/18/2025	critical
216720	SUSE SLES12 Security Update : pam_pkcs11 (SUSE-SU-2025:0688-1)	Nessus	SuSE Local Security Checks	2/25/2025	2/25/2025	critical

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