CVE-2017-8028: Spring-LDAP authentication with userSearch and STARTTLS allows authentication with arbitrary password
Spring by Pivotal
When connected to some LDAP servers, when no additional attributes are bound, and when using LDAP BindAuthenticator with org.springframework.ldap.core.support.DefaultTlsDirContextAuthenticationStrategy as the authentication strategy, and setting userSearch, authentication is allowed with an arbitrary password when the username is correct. This occurs because some LDAP vendors require an explicit operation for the LDAP bind to take effect.
Severity is high unless otherwise noted.
- Spring-LDAP versions 1.3.0 - 2.3.1
Users of affected versions should apply the following mitigation:
- Upgrade to Spring-LDAP version 2.3.2.RELEASE+
This vulnerability was responsibly reported by Tobias Schneider.
2017-10-16: Initial vulnerability report published