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I. Basic Information for CVE-2021-35209
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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).
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zimbra Collaboration Suite 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zimbra Collaboration Suite(ZCS)是美国Synacor的一款开源协同办公套件。该产品包括WebMail、日历、通信录等。 Zimbra Collaboration Suite 8.8.15 Patch 23和9.0.0 Patch 16之前版本存在代码问题漏洞,该漏洞源于在代理请求中X-Host标头的值覆盖了Host标头的值,不会根据允许代理的主机白名单检查X-Host 标头的值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
-n/a n/a -
II. Public POCs for CVE-2021-35209
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III. Intelligence Information for CVE-2021-35209
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IV. Related Vulnerabilities
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