Improper Restriction of Excessive Authentication Attempts Affecting lemonldap-ng package, versions <2.0.11+ds-4
Threat Intelligence
EPSS
1.58% (88th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN12-LEMONLDAPNG-1549550
- published 23 Jul 2021
- disclosed 30 Jul 2021
Introduced: 23 Jul 2021
CVE-2021-35472 Open this link in a new tabHow to fix?
Upgrade Debian:12 lemonldap-ng to version 2.0.11+ds-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lemonldap-ng package and not the lemonldap-ng package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.
References
- https://security-tracker.debian.org/tracker/CVE-2021-35472
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/8d3b763b6af2b8a9c4ad2765fbfabffec8a73af5
- https://www.debian.org/security/2021/dsa-4943
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2539
- https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/tags
CVSS Scores
version 3.1