GHSA-342c-vcff-2ff2 Login timing attack in ezsystems/ezplatform-kernel

Not scored Published

Attackers can discover valid user accounts via timing attacks due to insufficient randomization in Ibexa DXP login processes.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is GHSA-342c-vcff-2ff2?

GHSA-342c-vcff-2ff2 is a vulnerability in ezsystems/ezplatform-kernel, published on 2 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Ibexa DXP is using random execution time to hinder timing attacks against user accounts, a method of discovering whether a given account exists in a system without knowing its password, thus affecting privacy. This implementation was found to not be good enough in some situations. The fix replaces this with constant time functionality, configured in the new security.yml parameter 'ibexa.security.authentication.constant_auth_time'. It will log a warning if the constant time is exceeded. If this happens the setting should be increased.

Which versions are affected by GHSA-342c-vcff-2ff2?

2 open source packages ship an affected version, including ezsystems/ezplatform-kernel.

PackageAffectedFixed in
ezsystems/ezplatform-kernel PackagistFrom 1.3.01.3.19
ezsystems/ezplatform-kernel PackagistFrom 1.3.01.3.19

How do I fix GHSA-342c-vcff-2ff2?

Upgrade ezsystems/ezplatform-kernel to 1.3.19 or later.

Is GHSA-342c-vcff-2ff2 being exploited?

There is no known exploitation of GHSA-342c-vcff-2ff2 in the wild and no public exploit code.

Sources

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