In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.
Weakness
The product does not validate, or incorrectly validates, a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Apache::session::ldap | Lemonldap-ng | * | 0.5 (excluding) |
| Libapache-session-ldap-perl | Ubuntu | bionic | * |
| Libapache-session-ldap-perl | Ubuntu | esm-apps/bionic | * |
| Libapache-session-ldap-perl | Ubuntu | esm-apps/focal | * |
| Libapache-session-ldap-perl | Ubuntu | esm-apps/xenial | * |
| Libapache-session-ldap-perl | Ubuntu | focal | * |
| Libapache-session-ldap-perl | Ubuntu | trusty | * |
| Libapache-session-ldap-perl | Ubuntu | upstream | * |
| Libapache-session-ldap-perl | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
References
- https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561f
- https://lists.debian.org/debian-lts-announce/2023/01/msg00024.html
- https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561f
- https://lists.debian.org/debian-lts-announce/2023/01/msg00024.html