Auth bypass in Pivotal Software Spring-Ldap
CVE-2017-8028
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.
Vulnerability class: Broken Authentication
EPSS: 0.026 (83.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Pivotal_software Spring-ldap — versions 1.3.0, 1.3.1, 1.3.2
- Debian Debian_linux — versions 8.0
- N/a Spring-ldap Versions 1.3.0 2.3.1 — versions Spring-LDAP Spring-LDAP versions 1.3.0 2.3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security_alert@emc.com (x_refsource_REDHAT, vendor-advisory)
- security_alert@emc.com (vendor-advisory, Third Party Advisory, Issue Tracking, x_refsource_DEBIAN)
- security_alert@emc.com (mailing-list, x_refsource_MLIST)
- security_alert@emc.com (x_refsource_MISC)
- security_alert@emc.com (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-8028?
- CVE-2017-8028 is a high-severity vulnerability in Pivotal Software Spring-Ldap, classified under Improper Authentication. CVSS score: 8.1/10. Published 2017-11-27.
- How severe is CVE-2017-8028?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2017-8028 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.