PT-2023-22013 · Unknown · Lemonldap::Ng

Published 2023-03-31 · Updated 2023-07-14 · CVE-2023-28862

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions LemonLDAP::NG versions prior to 2.16.1

Description An issue was discovered in LemonLDAP::NG that allows attackers to bypass 2FA verification due to weak session ID generation in the AuthBasic handler and incorrect failure handling during a password check. Any plugin that tries to deny session creation after the store step does not deny an AuthBasic session.

Recommendations For versions prior to 2.16.1, update to version 2.16.1 or later to resolve the issue. As a temporary workaround, consider disabling the AuthBasic handler until a patch is available. Restrict access to plugins that try to deny session creation after the store step to minimize the risk of exploitation.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2023-28862

DLA-3496-1

Affected Products

Lemonldap::Ng

References · 20

• 🔥 https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2896 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-28862 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3496-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-28862 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/lemonldap-ng · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-28862 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28862 · Security Note
• https://ubuntu.com/security/CVE-2023-28862 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-28862 · Security Note
• https://osv.dev/vulnerability/CVE-2023-28862 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DLA-3496-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-28862 · Vendor Advisory
• https://packages.debian.org/src:lemonldap-ng · Note
• https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/releases/v2.16.1 · Note
• https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/aadbb02471bf2a5effd7590708edb8a180f27948 · Note