CVE-2021-35209
published 2021-07-02CVE-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…
PriorityP349critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.97%
85.5th percentile
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
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| zimbra | collaboration | — | — |
| zimbra | collaboration | — | — |
| zimbra | collaboration | >= 8.8 < 8.8.15 | 8.8.15 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://blog.sonarsource.com/zimbra-webmail-compromise-via-emailhttps://wiki.zimbra.com/wiki/Security_Centerhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16https://wiki.zimbra.com/wiki/Zimbra_Security_Advisorieshttps://blog.sonarsource.com/zimbra-webmail-compromise-via-emailhttps://wiki.zimbra.com/wiki/Security_Centerhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
2021-07-02
Published