What’s Vulnerable › Vulnerabilities

CVE-2022-41347

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-09-26 · updated 2026-06-17

Description

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.x and 9.x (e.g., 8.8.15). The Sudo configuration permits the zimbra user to execute the NGINX binary as root with arbitrary parameters. As part of its intended functionality, NGINX can load a user-defined configuration file, which includes plugins in the form of .so files, which also execute as root.

Affected products

• Zimbra Collaboration: 8.8.15, 9.0.0

References

• https://darrenmartyn.ie/2021/10/25/zimbra-nginx-local-root-exploit/
• https://github.com/darrenmartyn/zimbra-hinginx
• https://wiki.zimbra.com/wiki/Security_Center
• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
• https://darrenmartyn.ie/2021/10/25/zimbra-nginx-local-root-exploit/
• https://github.com/darrenmartyn/zimbra-hinginx
• https://wiki.zimbra.com/wiki/Security_Center
• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

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