Detections
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TencentOS Server 3: idm:DL1 (TSSA-2025:1008)

critical Nessus Plugin ID 302520

Synopsis

The remote TencentOS Server 3 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2025:1008 advisory.

 Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

 CVE-2025-7493:
 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.

Tenable has extracted the preceding description block directly from the Tencent Linux 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

Update the affected packages.

See Also

https://mirrors.tencent.com/tlinux/errata/tssa-20251008.xml

Plugin Details

Severity: Critical

ID: 302520

File Name: tencentos_TSSA_2025_1008.nasl

Version: 1.1

Type: local

Published: 3/16/2026

Updated: 3/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

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-2025-7493

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:tencent:tencentos_server:python-kdcproxy, p-cpe:/a:tencent:tencentos_server:ipa-healthcheck, p-cpe:/a:tencent:tencentos_server:python-jwcrypto, p-cpe:/a:tencent:tencentos_server:softhsm, p-cpe:/a:tencent:tencentos_server:slapi-nis, cpe:/o:tencent:tencentos_server:3, p-cpe:/a:tencent:tencentos_server:ipa, p-cpe:/a:tencent:tencentos_server:python-qrcode, p-cpe:/a:tencent:tencentos_server:pyusb, p-cpe:/a:tencent:tencentos_server:bind-dyndb-ldap, p-cpe:/a:tencent:tencentos_server:opendnssec, p-cpe:/a:tencent:tencentos_server:python-yubico

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/etc/os-release, Host/TencentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/1/2025

Vulnerability Publication Date: 9/30/2025

Reference Information

CVE: CVE-2025-7493