Check: SRG-APP-000175-WSR-000095
Web Server SRG:
SRG-APP-000175-WSR-000095
(in versions v4 r2 through v2 r2)
Title
The web server must perform RFC 5280-compliant certification path validation. (Cat II impact)
Discussion
A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make an informed decision regarding acceptance of an end entity certificate. Certification path validation includes checks such as certificate issuer trust, time validity and revocation status for each certificate in the certification path. Revocation status information for CA and subject certificates in a certification path is commonly provided via certificate revocation lists (CRLs) or online certificate status protocol (OCSP) responses.
Check Content
Review the web server documentation and deployed configuration to determine whether the web server provides PKI functionality that validates certification paths in accordance with RFC 5280. If PKI is not being used, this is NA. If the web server is using PKI, but it does not perform this requirement, this is a finding.
Fix Text
Configure the web server to validate certificates in accordance with RFC 5280.
Additional Identifiers
Rule ID: SV-206388r961038_rule
Vulnerability ID: V-206388
Group Title: SRG-APP-000175
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000185 |
For public key-based authentication, validate certificates by constructing and verifying a certification path to an accepted trust anchor including checking certificate status information. |
Controls
| Number | Title |
|---|---|
| IA-5(2) |
Pki-based Authentication |