Cve20207796 Zimbra Collaboration Suite Hot! Full | Certified |

Article word count: ~1,850 (suitable for a deep-dive technical blog or security vendor resource).

Critical SSRF Vulnerability in Zimbra Collaboration Suite (CVE-2020-7796)

Scan for atypical file inclusion requests and unauthorized access patterns in server logs.

The response lists every admin email hash. She extracts admin@logi-core.local .

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. cve20207796 zimbra collaboration suite full

Unlike many vulnerabilities that yield limited access (e.g., file read only, or authenticated RCE), CVE-2020-27996 allows an unauthenticated remote attacker to execute arbitrary system commands with the privileges of the Zimbra service user (typically zimbra ). This is the equivalent of handing over the keys to the kingdom.

to the latest patch level:

The specific patched versions that address the path traversal vulnerabilities are:

: Attackers use this SSRF to scan internal infrastructure or chain it with other exploits to achieve deeper access to corporate environments. Recommended Actions Article word count: ~1,850 (suitable for a deep-dive

An attacker sends a crafted request to the vulnerable Zimbra server.

To evaluate if your environment is exposed to CVE-2020-7796, verify your deployments against these exact structural preconditions: Metric / Condition Risk Profile Details Synacor Zimbra Collaboration Suite (ZCS) Vulnerable Versions All versions prior to 8.8.15 Patch 7 Required Extension WebEx Zimlet must be actively installed Required Flag Zimlet JSP processing must be enabled natively Exploitation Metric High Likelihood (EPSS score historically tracked over 90%) Step-by-Step Remediation Strategy

Zimbra Collaboration Suite (ZCS) versions before 8.8.15 Patch 7 CVSS 3.x Score: 9.8 (Critical) Attack Vector: Network (Remote) Authentication Required: No (Unauthenticated) Technical Details

If immediate patching is not possible, security teams should implement the following Acunetix-recommended controls : She extracts admin@logi-core

This allows attackers to scan internal ports, interact with local loopback services ( 127.0.0.1 ), and access back-end configuration panels hidden behind corporate firewalls. Severity and Threat Landscape

She decides to test on a staging clone.

Once RCE is achieved:

By chaining: