CVE-2021-35472 Auth bypass in n/a

High 8.8 Published Updated

Attackers can bypass authorization or spoof identities by exploiting session cache corruption through repeated authentication attempts in LemonLDAP::NG.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-35472?

CVE-2021-35472 is a high-severity authentication bypass vulnerability in Debian Debian Linux, published on 27 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-307

Which versions are affected by CVE-2021-35472?

It affects 2 products.

Products include Debian Debian Linux, Lemonldap-Ng Lemonldap\.

How do I fix CVE-2021-35472?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-35472 being exploited?

There is no known exploitation of CVE-2021-35472 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-35472, DSA-4943-1, GHSA-9v87-664x-72qc, UBUNTU-CVE-2021-35472.

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