CVE-2021-36356 File upload in n/a

Critical 9.8 Published 31 Aug 2021 Updated 4 Aug 2024

Remote attackers can execute arbitrary code by uploading malicious files via an insecure AJAX endpoint in KRAMER VIAware.

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-2021-36356?

CVE-2021-36356 is a critical vulnerability in n/a, published on 31 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

KRAMER VIAware through August 2021 allows remote attackers to execute arbitrary code because ajaxPages/writeBrowseFilePathAjax.php accepts arbitrary executable pathnames (even though browseSystemFiles.php is no longer reachable via the GUI). NOTE: this issue exists because of an incomplete fix for CVE-2019-17124.

Weakness: CWE-434

Which versions are affected by CVE-2021-36356?

It affects 1 product.

Products include Kramerav Viaware.

How do I fix CVE-2021-36356?

No fix has been published for CVE-2021-36356 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-36356 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-36356 exists.

Public exploit code: 1 Exploit-DB entry and 1 Nuclei template.

Sources

Also known as GHSA-qjp8-q2c4-mpmm.