Vulnerability in Nixos Project
CVE-2017-11501
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
References
- openwall.com/lists/oss-security/2017/07/20/1 (Patch, Mailing List, Third Party Advisory, Mitigation)
- groups.google.com/forum/
- github.com/NixOS/nixpkgs/issues/27506 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-11501?
- CVE-2017-11501 is a medium-severity vulnerability in Nixos Project, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2017-07-20.
- How severe is CVE-2017-11501?
- Medium severity. CVSS v3 base score is 5.9 out of 10.