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CVE-2023-28862

CRITICALCVSS 9.8/10EPSS 0.96%

Last modified

CVE-2023-28862 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An 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. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

An 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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.96%

56.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
Lemonldap-NgLemonldap\< 2.16.1Ng

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-28862?
An 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.
How severe is CVE-2023-28862?
CVE-2023-28862 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28862?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST