Vulnerability Details : CVE-2021-40874
Potential exploit
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-40874
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng:2.0.13:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40874
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40874
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-40874
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-40874
-
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2612
[Security: low, CVE-2021-40874] RESTServer pwdConfirm always returns true with Combination + Kerberos (#2612) · Issues · LemonLDAP NG / lemonldap-ng · GitLabExploit;Issue Tracking;Patch;Third Party Advisory
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