Description
Networknt light-4j from 2.1.5 before 2.4.0 contains an authentication bypass vulnerability in BasicAuthHandler that allows unauthenticated attackers to log in as LDAP/AD-delegated users. Attackers can send a Basic Authorization header with a known username and empty password, triggering an unauthenticated LDAP bind that is accepted as successful authentication.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
networknt light-4j
Default version status: unaffected
2.1.5 to < 2.4.0affected
pkg:maven/com.networknt/basic-authReferences
- https://github.com/networknt/light-4j/issues/2804 ↗
- https://github.com/networknt/light-4j/pull/2805 ↗
- https://github.com/networknt/light-4j/commit/54743badb34260b76ed131d8b6a4f60210cc3673 ↗
- https://github.com/networknt/light-4j/releases/tag/2.4.0 ↗
- https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/src/main/java/com/networknt/basicauth/BasicAuthHandler.java#L189-L200 ↗
- https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/src/main/java/com/networknt/ldap/LdapUtil.java#L152-L173 ↗
- https://www.vulncheck.com/advisories/networknt-light-4j-2.1.5-before-2.4.0-authentication-bypass-via-empty-ldap-password ↗