CVE-2017-8028 Improper Authentication in Pivotal Spring-LDAP
Attackers can bypass authentication with arbitrary passwords if specific LDAP configurations are used, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-8028?
CVE-2017-8028 is a high-severity authentication bypass vulnerability in Debian Debian Linux, published on 27 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Pivotal Spring-LDAP versions 1.3.0 - 2.3.1, 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.
Weakness: CWE-287
Which versions are affected by CVE-2017-8028?
2 open source packages ship an affected version, including org.springframework.ldap:spring-ldap-core. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework.ldap:spring-ldap-core Maven | From 1.3.0 | 2.3.2 |
org.springframework.ldap:spring-ldap-core Maven | From 1.3.0 | 2.3.2 |
Products include Debian Debian Linux, Pivotal Software Spring-Ldap.
How do I fix CVE-2017-8028?
Upgrade org.springframework.ldap:spring-ldap-core to 2.3.2 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2017-8028 being exploited?
There is no known exploitation of CVE-2017-8028 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DLA-1180-1, DSA-4046-1, GHSA-pjqh-2jcc-5j84, MGASA-2018-0235, UBUNTU-CVE-2017-8028.