Unrated
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...
CVE-2021-35209
First seen on SecPulse
Original description The description as published by the source.
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).
References
- advisory wiki.zimbra.com
- advisory wiki.zimbra.com
- advisory wiki.zimbra.com
- advisory wiki.zimbra.com
- report blog.sonarsource.com