CVE-2023-28862

NameCVE-2023-28862
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3496-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lemonldap-ng (PTS)bullseye2.0.11+ds-4+deb11u5fixed
bullseye (security)2.0.11+ds-4+deb11u6fixed
bookworm2.16.1+ds-deb12u3fixed
sid, trixie2.20.1+ds-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lemonldap-ngsourcebuster2.0.2+ds-7+deb10u9DLA-3496-1
lemonldap-ngsourcebullseye2.0.11+ds-4+deb11u4
lemonldap-ngsource(unstable)2.16.1+ds-1

Notes

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2896
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/merge_requests/334
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