High severity · published Aug 12, 2022
CVE-2022-37041
An issue was discovered in ProxyServlet.java in the /proxy servlet in Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0
7.5
CVSS
0.7%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Collaboration · Zimbra
8.8.15; 9.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-37041
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-37041
Patch
https://wiki.zimbra.com/wiki/Security_Center
Vendor Advisory
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
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