Description
An issue was discovered in LemonLDAP::NG before 2.16.1. Weak session ID generation in the AuthBasic handler and incorrect failure handling during a password check allow attackers to bypass 2FA verification. Any plugin that tries to deny session creation after the store step does not deny an AuthBasic session.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2896Exploit, Issue Tracking, Patch
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/releases/v2.16.1Release Notes
- https://lists.debian.org/debian-lts-announce/2023/07/msg00018.html
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2896Exploit, Issue Tracking, Patch
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/releases/v2.16.1Release Notes
- https://lists.debian.org/debian-lts-announce/2023/07/msg00018.html
Timeline
- Published
- Mar 31, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified