CVE-2022-37041

CVE-2022-37041 affects Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0. The issue is in ProxyServlet.java under the /proxy servlet where the X-Forwarded-Host header overwrites the Host header in proxied requests and is not checked against ZCS’s allowed proxy domains (zimbraProxyAllowedDomains). T...

CVE-2021-35209

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...

CVE-2021-35209

The CVE-2021-35209 issue affects Zimbra Collaboration Suite via the ProxyServlet /proxy implementation. The X-Host header can override the Host header in proxied requests, and the value is not validated against zimbraProxyAllowedDomains, enabling an SSRF-like possibility and open redirect behavio...