Detections
Analytics
Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: httpd (UTSA-2025-991046)
critical Nessus Plugin ID 277868
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991046 advisory.In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.
Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
Tenable has extracted the preceding description block directly from the Unity 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 httpd package.See Also
Plugin Details
Severity: Critical
ID: 277868
File Name: unity_linux_UTSA-2025-991046.nasl
Version: 1.1
Type: local
Published: 12/9/2025
Updated: 12/9/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: High
Base Score: 9.4
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
CVSS Score Source: CVE-2025-23048
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 12/9/2025
Vulnerability Publication Date: 7/8/2025
Reference Information
CVE: CVE-2025-23048