VULNERABILITY INTELLIGENCE

CVE-2017-11501

CVSS score5.9 MEDIUM
EPSS probability0.88%
CISA KEVNot currently listed
Published2017-07-20
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation for LDAP. The users.ldap NixOS module implements user authentication against LDAP servers via a PAM module. It was found that if TLS is enabled to connect to the LDAP server with users.ldap.useTLS, peer verification will be unconditionally disabled in /etc/ldap.conf.

Weakness classification

  • CWE-295: Improper Certificate Validation

Primary references