CVE-2022-20738 Cisco Umbrella Secure Web Gateway File Inspection Bypass Vulnerability

Medium 5.8 Published Updated

An unauthenticated remote attacker can bypass file inspection protections in Cisco Umbrella Secure Web Gateway to download malicious payloads.

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-2022-20738?

CVE-2022-20738 is a medium-severity vulnerability in Cisco Umbrella Insights Virtual Appliance, published on 10 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Cisco Umbrella Secure Web Gateway service could allow an unauthenticated, remote attacker to bypass the file inspection feature. This vulnerability is due to insufficient restrictions in the file inspection feature. An attacker could exploit this vulnerability by downloading a crafted payload through specific methods. A successful exploit could allow the attacker to bypass file inspection protections and download a malicious payload.

Weakness: CWE-693

Which versions are affected by CVE-2022-20738?

It affects 1 product.

Products include Cisco Umbrella Secure Web Gateway.

How do I fix CVE-2022-20738?

No fix has been published for CVE-2022-20738 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-20738 being exploited?

There is no known exploitation of CVE-2022-20738 in the wild and no public exploit code.

Sources

Also known as GHSA-qm4x-x5rj-qf54.

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