Amazon Linux 2 : ipa (ALAS-2025-2901)

critical Nessus Plugin ID 240456

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2901 advisory.

A privilege escalation from host to domain vulnerability was found in the FreeIPA project. The FreeIPA package fails to validate the uniqueness of the `krbCanonicalName` for the admin account by default, allowing users to create services with the same canonical name as the REALM admin. When a successful attack happens, the user can retrieve a Kerberos ticket in the name of this service, containing the admin@REALM credential. This flaw allows an attacker to perform administrative tasks over the REALM, leading to access to sensitive data and sensitive data exfiltration. (CVE-2025-4404)

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

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

Solution

Run 'yum update ipa' to update your system.

Plugin Details

Severity: Critical

ID: 240456

File Name: al2_ALAS-2025-2901.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/25/2025

Updated: 6/25/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2025-4404

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:amazon:linux:ipa-common, p-cpe:/a:amazon:linux:python2-ipalib, p-cpe:/a:amazon:linux:ipa-server, p-cpe:/a:amazon:linux:ipa-server-common, p-cpe:/a:amazon:linux:python2-ipaserver, p-cpe:/a:amazon:linux:ipa-debuginfo, p-cpe:/a:amazon:linux:ipa-server-dns, p-cpe:/a:amazon:linux:ipa-server-trust-ad, p-cpe:/a:amazon:linux:python2-ipaclient, p-cpe:/a:amazon:linux:ipa-client, p-cpe:/a:amazon:linux:ipa-client-common, p-cpe:/a:amazon:linux:ipa-python-compat, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/24/2025

Vulnerability Publication Date: 6/17/2025

Reference Information

CVE: CVE-2025-4404

Detections

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