CVE-2021-33576 Path traversal in n/a

Critical 9.8 Published Updated

Attackers can write files to arbitrary locations on the server via path traversal in AS2 message filenames, potentially compromising system integrity.

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-2021-33576?

CVE-2021-33576 is a critical path traversal vulnerability in n/a, published on 18 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Cleo LexiCom 5.5.0.0. Within the AS2 message, the sender can specify a filename. This filename can include path-traversal characters, allowing the file to be written to an arbitrary location on disk.

Weakness: CWE-22

Which versions are affected by CVE-2021-33576?

It affects 1 product.

Products include Cleo Lexicom.

How do I fix CVE-2021-33576?

No fix has been published for CVE-2021-33576 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-33576 being exploited?

There is no known exploitation of CVE-2021-33576 in the wild and no public exploit code.

Sources

Also known as GHSA-83pw-wxhw-r33r.

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