CVE-2021-35209
CRITICAL
9.8
CVSS Severity Score
Vulnerability Description
An issue was discovered in ProxyServlet.java in the /proxy servlet in Zimbra Collaboration Suite 8.8 before 8.8.15 Patch 23 and 9.x before 9.0.0 Patch 16. The value of the X-Host header overwrites the value of the Host header in proxied requests. The value of X-Host header is not checked against the whitelist of hosts Zimbra is allowed to proxy to (the zimbraProxyAllowedDomains setting).
Affected Platforms (CPE)
📦
Zimbra
Collaboration
>= 8.8 and < 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 8.8.15📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra
Collaboration
= 9.0.0📦
Zimbra