CVE-2022-37041 Server-side request forgery in n/a

High 7.5 Published 11 Aug 2022 Updated 3 Aug 2024

Attackers can bypass proxy restrictions in Zimbra by manipulating the X-Forwarded-Host header, potentially accessing unauthorized internal resources.

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-2022-37041?

CVE-2022-37041 is a high-severity server-side request forgery vulnerability in n/a, published on 11 Aug 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 ProxyServlet.java in the /proxy servlet in Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0. The value of the X-Forwarded-Host header overwrites the value of the Host header in proxied requests. The value of X-Forwarded-Host header is not checked against the whitelist of hosts that ZCS is allowed to proxy to (the zimbraProxyAllowedDomains setting).

Weakness: CWE-918

Which versions are affected by CVE-2022-37041?

It affects 1 product.

Products include Zimbra Collaboration.

How do I fix CVE-2022-37041?

No fix has been published for CVE-2022-37041 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2022-37041 being exploited?

There is no known exploitation of CVE-2022-37041 in the wild and no public exploit code.

Sources

Also known as GHSA-63w7-6gxr-7jjw.