Cve20207796 Zimbra Collaboration Suite High Quality Full Review

An attacker could trigger a system command with the timestamp or other predictable arguments.

Potential for further exploitation or pivoting within the network. National Institute of Standards and Technology (.gov) Technical Analysis The flaw exists within a specific component of the suite: Trigger Component: WebEx zimlet Root Cause: Insufficient validation of user-supplied input when the zimlet JSP (Jakarta Server Pages) functionality is enabled. Exploitation:

Understanding CVE-2020-7796: A Critical SSRF Vulnerability in Zimbra Collaboration Suite

Attackers can intercept response contents from internal services to leak sensitive data back to external infrastructure. Affected Configurations

: Since the flaw exists within the WebEx zimlet component, disabling it can reduce your attack surface. Network Restriction cve20207796 zimbra collaboration suite full

CVE-2020-7796 is a vulnerability, a class of flaw where an attacker can coerce a vulnerable server into making arbitrary HTTP requests on their behalf.

[Attacker] │ │ 1. Sends malicious payload via HTTP request ▼ [Zimbra External Webmail Interface] │ │ 2. Parses WebEx Zimlet JSP file without validation ▼ [Internal Network / Protected Resources] (Firewall Bypassed) The Vulnerable Component

A successful exploitation of CVE-2020-7796 has severe consequences for the Zimbra instance:

An unauthenticated attacker with network access can exploit this SSRF to achieve several malicious objectives: An attacker could trigger a system command with

: Data leakage, internal network scanning, and potential escalation if internal services have weaker authentication than public ones. Remediation: How to Protect Your Server

In the ever-evolving landscape of cybersecurity, some vulnerabilities stand out due to their potential for widespread damage and critical impact. is exactly that: a severe Server-Side Request Forgery (SSRF) vulnerability in the Zimbra Collaboration Suite (ZCS) , one of the world's most popular email and collaboration platforms.

Attackers may access internal APIs, configuration files, or user data.

An unauthenticated remote attacker can leverage CVE-2020-7796 to accomplish several malicious objectives: [Attacker] │ │ 1

, requiring organizations to remediate it promptly due to active exploitation in the wild. National Institute of Standards and Technology (.gov) Vulnerability Overview Vulnerability Type: Server-Side Request Forgery (SSRF) (CWE-918). (CVSS v3.1 score of

References & further reading

To mitigate this vulnerability, administrators are advised to:

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