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Linux Distros Unpatched Vulnerability : CVE-2025-7493

critical Nessus Plugin ID 266350

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

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

 - A privilege escalation flaw from host to domain administrator was found in FreeIPA. This vulnerability is similar to CVE-2025-4404, where it fails to validate the uniqueness of the krbCanonicalName. While the previously released version added validations for the admin@REALM credential, FreeIPA still does not validate the root@REALM canonical name, which can also be used as the realm administrator's name. This flaw allows an attacker to perform administrative tasks over the REALM, leading to access to sensitive data and sensitive data exfiltration. (CVE-2025-7493)

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

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2025-7493

Plugin Details

Severity: Critical

ID: 266350

File Name: unpatched_CVE_2025_7493.nasl

Version: 1.1

Type: local

Agent: unix

Family: Misc.

Published: 10/1/2025

Updated: 10/1/2025

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

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2025-7493

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:ipa-selinux-nfast, p-cpe:/a:centos:centos:python3-ipatests, p-cpe:/a:centos:centos:ipa-client-epn, p-cpe:/a:redhat:enterprise_linux:ipa-server-encrypted-dns, p-cpe:/a:centos:centos:python2-ipalib, p-cpe:/a:centos:centos:ipa-client-samba, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:ipa-client-common, p-cpe:/a:redhat:enterprise_linux:ipa-client-epn, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:ipa-server, p-cpe:/a:redhat:enterprise_linux:python2-ipaclient, p-cpe:/a:centos:centos:ipa-server-dns, p-cpe:/a:redhat:enterprise_linux:ipa, p-cpe:/a:redhat:enterprise_linux:python2-ipalib, p-cpe:/a:redhat:enterprise_linux:ipa-client, p-cpe:/a:redhat:enterprise_linux:python3-ipalib, p-cpe:/a:redhat:enterprise_linux:ipa-admintools, p-cpe:/a:centos:centos:ipa-server-common, p-cpe:/a:redhat:enterprise_linux:ipa-selinux-luna, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:python2-ipaclient, p-cpe:/a:redhat:enterprise_linux:ipa-selinux-nfast, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:ipa-client-common, p-cpe:/a:redhat:enterprise_linux:python3-ipatests, p-cpe:/a:centos:centos:ipa-admintools, p-cpe:/a:centos:centos:ipa-server, p-cpe:/a:redhat:enterprise_linux:python3-ipaserver, p-cpe:/a:redhat:enterprise_linux:ipa-server-trust-ad, p-cpe:/a:redhat:enterprise_linux:ipa-python, p-cpe:/a:centos:centos:python3-ipaserver, p-cpe:/a:centos:centos:ipa, p-cpe:/a:redhat:enterprise_linux:ipa-server-common, p-cpe:/a:centos:centos:python2-ipaserver, p-cpe:/a:redhat:enterprise_linux:ipa-client-samba, p-cpe:/a:centos:centos:ipa-client, p-cpe:/a:centos:centos:ipa-selinux-luna, p-cpe:/a:centos:centos:ipa-common, p-cpe:/a:redhat:enterprise_linux:ipa-client-encrypted-dns, p-cpe:/a:centos:centos:ipa-python, p-cpe:/a:redhat:enterprise_linux:ipa-common, p-cpe:/a:centos:centos:ipa-selinux, p-cpe:/a:centos:centos:python3-ipalib, p-cpe:/a:redhat:enterprise_linux:python3-ipaclient, p-cpe:/a:redhat:enterprise_linux:python2-ipaserver, p-cpe:/a:centos:centos:ipa-server-trust-ad, p-cpe:/a:redhat:enterprise_linux:ipa-server-dns, p-cpe:/a:centos:centos:ipa-client-encrypted-dns, p-cpe:/a:centos:centos:python3-ipaclient, p-cpe:/a:centos:centos:ipa-server-encrypted-dns, p-cpe:/a:redhat:enterprise_linux:ipa-selinux, p-cpe:/a:redhat:enterprise_linux:ipa-python-compat, p-cpe:/a:centos:centos:ipa-python-compat

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/30/2025

Reference Information

CVE: CVE-2025-7493