CVE-2021-34805 Path traversal in n/a

High 7.5 Published Updated

An attacker can read arbitrary files on the server by exploiting directory traversal in FAUST iServer URL requests.

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-2021-34805?

CVE-2021-34805 is a high-severity path traversal vulnerability in n/a, published on 31 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in FAUST iServer before 9.0.019.019.7. For each URL request, it accesses the corresponding .fau file on the operating system without preventing %2e%2e%5c directory traversal.

Weakness: CWE-22

Which versions are affected by CVE-2021-34805?

It affects 1 product.

Products include Land-Software Faust Iserver.

How do I fix CVE-2021-34805?

No fix has been published for CVE-2021-34805 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-2021-34805 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-34805 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-m62x-9qq8-9g5h.

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