CVE-2021-25294 Deserialization in n/a

Critical 9.8 Published Updated

Remote attackers can execute arbitrary code on OpenCATS by sending malicious serialized data to the activity module.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-25294?

CVE-2021-25294 is a critical unsafe deserialization vulnerability in n/a, published on 18 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenCATS through 0.9.5-3 unsafely deserializes index.php?m=activity requests, leading to remote code execution. This occurs because lib/DataGrid.php calls unserialize for the parametersactivity:ActivityDataGrid parameter. The PHP object injection exploit chain can leverage an __destruct magic method in guzzlehttp.

Weakness: CWE-502

Which versions are affected by CVE-2021-25294?

It affects 1 product.

Products include Opencats Opencats.

How do I fix CVE-2021-25294?

No fix has been published for CVE-2021-25294 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2021-25294 being exploited?

There is no known exploitation of CVE-2021-25294 in the wild and no public exploit code.

Sources

Also known as GHSA-wvm3-h9rx-qj3q.

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