Auth bypass in Lemonldap-Ng Lemonldap\
CVE-2019-15941
OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a crafted OpenID Connect authorization request. To be vulnerable, there must exist an OIDC Relaying party within the LemonLDAP configuration with weaker access control rules than the target RP, and no filtering on redirection URIs.
Vulnerability class: Broken Access Control
EPSS: 0.022 (80.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Lemonldap-ng Lemonldap\ — versions \
- Debian Debian_linux — versions 10.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-15941?
- CVE-2019-15941 is a critical-severity vulnerability in Lemonldap-Ng Lemonldap\, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2019-09-25.
- How severe is CVE-2019-15941?
- Critical severity. CVSS v3 base score is 9.8 out of 10.