CVE-2021-40874
Last modified
CVE-2021-40874 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13. When using the RESTServer plug-in to operate a REST password validation service (for another LemonLDAP::NG instance, for example) and using the Kerberos authentication method combined with another method with the Combination authentication plug-in, any password will be recognized as valid for an existing user.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.
Description
An issue was discovered in LemonLDAP::NG (aka lemonldap-ng) 2.0.13. When using the RESTServer plug-in to operate a REST password validation service (for another LemonLDAP::NG instance, for example) and using the Kerberos authentication method combined with another method with the Combination authentication plug-in, any password will be recognized as valid for an existing user.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Lemonldap-Ng | Lemonldap\ | \ | Ng |
| Debian | Debian Linux | 10.0 | — |
References
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2612Exploit, Issue Tracking, Patch, Third Party Advisory
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2612Exploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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