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SCA: security update for org.apereo.cas:cas-server-support-x509-core (GHSA-p78h-m8pv-g9gm)

medium Tenable Self-Hosted Container Security Plugin ID 417371

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Apereo CAS is an open source multilingual single sign-on solution for the web. Apereo CAS can be
 configured to use authentication based on client X509 certificates. These certificates can be provided via
 TLS handshake or a special HTTP header, such as “ssl_client_cert”. When checking the validity of the
 provided client certificate, X509CredentialsAuthenticationHandler performs check that this certificate is
 not revoked. To do so, it fetches URLs provided in the “CRL Distribution Points” extension of the
 certificate, which are taken from the certificate itself and therefore can be controlled by a malicious
 user. If the CAS server is configured to use an LDAP server for x509 authentication with a password, for
 example by setting a “cas.authn.x509.ldap.ldap-url” and “cas.authn.x509.ldap.bind-credential” properties,
 X509CredentialsAuthenticationHandler fetches revocation URLs from the certificate, which can be LDAP urls.
 When making requests to this LDAP urls, Apereo CAS uses the same password as for initially configured LDAP
 server, which can lead to a password leak. An unauthenticated user can leak the password used to LDAP
 connection configured on server. This issue has been addressed in version 6.6.6. Users are advised to
 upgrade. There are no known workarounds for this vulnerability. (CVE-2023-28857)

See Also

https://github.com/advisories/GHSA-p78h-m8pv-g9gm

Plugin Details

Severity: Medium

ID: 417371

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-28857

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/5/2024

Vulnerability Publication Date: 6/27/2023

Reference Information

CVE: CVE-2023-28857