CVE-2019-15941

CRITICAL EPSS 80.3%
Published Sep 25, 20196y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Sep 25, 2019 6y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
80.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-863 Incorrect Authorization Authorization

Affected Products 2

VendorProductVersionRange
lemonldap-nglemonldap\\≥2.0.0  –  ≤2.0.5
debiandebian_linux10.0any

References 4

  • gitlab.ow2.org https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1881
    Third Party Advisory
  • projects.ow2.org https://projects.ow2.org/view/lemonldap-ng/lemonldap-ng-2-0-6-is-out/
    Third Party Advisory
  • seclists.org https://seclists.org/bugtraq/2019/Sep/46
    Mailing ListThird Party Advisory
  • debian.org https://www.debian.org/security/2019/dsa-4533
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.