CVE-2022-41347
CVE-2022-41347 is a high-severity vulnerability in Zimbra Collaboration with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (32nd percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Zimbra Collaboration
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-41347?
- 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.
- How severe is CVE-2022-41347?
- CVE-2022-41347 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-41347 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-41347?
- CVE-2022-41347 primarily affects Zimbra Collaboration. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-41347?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-41347 published?
- CVE-2022-41347 was published on 2022-09-26 and last updated on 2026-06-17.
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
Affected products (2)
- cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*
- cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*
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