CVE-2011-4356 Celery local privilege escalation vulnerability

Medium 6.9 Published Updated

Local attackers can escalate privileges by exploiting improper UID/GID handling in Celery worker processes during task execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2011-4356?

CVE-2011-4356 is a medium-severity vulnerability in n/a, published on 5 Dec 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Celery 2.1 and 2.2 before 2.2.8, 2.3 before 2.3.4, and 2.4 before 2.4.4 changes the effective id but not the real id during processing of the --uid and --gid arguments to celerybeat, celeryd_detach, celeryd-multi, and celeryev, which allows local users to gain privileges via vectors involving crafted code that is executed by the worker process.

Weakness: CWE-264

Which versions are affected by CVE-2011-4356?

7 open source packages ship an affected version, including celery. It affects 1 product.

PackageAffectedFixed in
celery PyPIFrom 2.12.2.8, 2.3.4, 2.4.4
celery PyPIFrom 2.1.02.2.8
celery PyPIFrom 2.1.02.2.8
celery PyPIFrom 2.3.02.3.4
celery PyPIFrom 2.3.02.3.4
celery PyPIFrom 2.4.02.4.4
1 more packages
celery PyPIFrom 2.4.02.4.4

Products include Celeryproject Celery.

How do I fix CVE-2011-4356?

Upgrade celery to a fixed version for your release line: 2.2.8, 2.3.4 or 2.4.4.

Is CVE-2011-4356 being exploited?

There is no known exploitation of CVE-2011-4356 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-4356, GHSA-rpc6-h455-3rx5, PYSEC-2011-17.

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