Suite Full [extra Quality] | Cve20207796 Zimbra Collaboration

An attacker uploads a file titled alert(document.cookie) .txt .

Restrict outbound connections from the Zimbra server to only necessary external destinations to prevent the server from being used as a proxy for malicious requests.

vulnerability in the Zimbra Collaboration Suite (ZCS). It allows unauthenticated remote attackers to force the server to make HTTP requests to arbitrary internal or external hosts, effectively using the server as a proxy to bypass firewalls and access sensitive internal data. Key Details Vulnerability Type: Server-Side Request Forgery (SSRF). 9.8 (Critical) on the CVSS v3.1 scale. Affected Versions: All versions of Zimbra Collaboration Suite prior to 8.8.15 Patch 7 Trigger Condition: The vulnerability specifically exists when the WebEx zimlet cve20207796 zimbra collaboration suite full

In the world of cybersecurity, vulnerabilities are often discussed among a mix of panic and confusion. One such instance involves the keyword "CVE-2020-27996 Zimbra Collaboration Suite Full." A web search for this term quickly leads to an unexpected discovery: the official MITRE CVE entry for CVE-2020-27996 actually describes a completely unrelated software application called (a .NET e-commerce platform), not the Zimbra Collaboration Suite (ZCS). This can be confusing for system administrators and security researchers trying to protect their Zimbra email servers.

CVE-2020-7796 serves as a stark reminder of the risks associated with complex enterprise collaboration suites. The combination of an unrestricted upload feature and improper access controls created a "full" compromise scenario for thousands of mail servers. For organizations using Zimbra, continuous patching and rigorous monitoring of web directories remain the most effective defenses against such vulnerabilities. An attacker uploads a file titled alert(document

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: If hosted on cloud infrastructure like AWS, GCP, or Azure, the attacker can query the local Cloud Metadata Service ( http://169.254.169 ) to extract highly sensitive IAM security tokens or instance configurations. It allows unauthenticated remote attackers to force the

The vulnerability, CVE-2020-7796, was discovered in the Zimbra Collaboration Suite version prior to 8.8.15 Patch 10. The issue lies in the Zimbra's REST (Representational State of Resource) API, which is used to manage and interact with the suite's features. An attacker can send a crafted HTTP request to the REST API, which can lead to a Blind Command Injection.