Authentication Bypass in LemonLDAP::NG RESTServer Plugin
CVE-2021-40874

9.8CRITICAL

Key Information:

Vendor

Lemonldap-ng

Status
Lemonldap\
Vendor
CVE Published:
18 July 2022

What is CVE-2021-40874?

A vulnerability exists in LemonLDAP::NG version 2.0.13 related to the RESTServer plug-in. This issue allows an attacker to exploit the password validation service by using the Kerberos authentication method combined with the Combination authentication plug-in. As a result, any given password could be incorrectly validated as legitimate for any existing user, posing a significant security risk for systems utilizing this configuration.

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References

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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