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Fencer Intel
high 7.5

CVE-2015-1852 json

OpenStack keystonemiddleware and python-keystoneclient vulnerable to man-in-the-middle attacks

published 2015-04-17 11 y ago modified 2026-06-17 4 mo ago also GHSA-p9wq-mjh8-q72m , PYSEC-2015-30 , PYSEC-2015-31 , EUVD-2015-0028

cvss
7.5
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi keystonemiddleware 1.6.0
  • pypi python-keystoneclient 1.4.0
  • python-keystoneclient Debian 14, Debian 13, Debian 12 1:1.3.0-2
  • python-keystonemiddleware Debian 14, Debian 13, Debian 12 1.5.0-2

debian advisories DEBIAN-CVE-2015-1852

  • python-keystoneclient Ubuntu 14.04 LTS 1:0.7.1-ubuntu1.2

ubuntu advisories UBUNTU-CVE-2015-1852

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-keystoneclient openstack 5 1:0.9.0-6.el6ost
  • python-keystoneclient openstack 5 1:0.9.0-6.el7ost
  • python-keystoneclient openstack 6 1:0.11.1-2.el7ost
  • python-keystonemiddleware openstack 6 1.3.2-1.el7ost

red hat advisories RHSA-2015:1685RHSA-2015:1677

  • python-novaclient OpenStack Cloud 5 2.20.0-9.2
  • python-glanceclient OpenStack Cloud 5 0.15.0-9.2
  • python-keystoneclient OpenStack Cloud 5 1.0.0-11.1
  • python-openstackclient OpenStack Cloud 5 0.4.1-9.2
  • python-keystonemiddleware OpenStack Cloud 5 1.2.0-11.2
  • python-novaclient Cloud Compute Node for SUSE Linux Enterprise 12 5 2.20.0-6.1
  • python-swiftclient Cloud Compute Node for SUSE Linux Enterprise 12 5 2.3.1-3.1
  • python-glanceclient Cloud Compute Node for SUSE Linux Enterprise 12 5 0.15.0-3.1

suse advisories SUSE-SU-2015:1434-1SUSE-SU-2015:1602-1SUSE-SU-2015:1208-1

  • python-keystonemiddleware openSUSE Tumbleweed 4.9.0-1.3

opensuse advisories openSUSE-SU-2024:10411-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-1852 updated cvss 6.8

keystonemiddleware/keystoneclient: S3Token TLS cert verification option not honored

  • Red Hat OpenStack Platform 4 python-keystoneclient
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 python-keystoneclient 0.9.0-6.el6ost Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 python-keystoneclient 0.9.0-6.el7ost
    fixed: vendor fix RHSA-2015:1685
  • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 python-keystoneclient 0.11.1-2.el7ost, python-keystonemiddleware 1.3.2-1.el7ost
    fixed: vendor fix RHSA-2015:1677
  • Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) python-keystoneclient, python-keystonemiddleware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.24% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi keystonemiddleware
<1.6.0
1.6.0
pypi python-keystoneclient
<1.4.0
1.4.0

Classification

Weakness
  • CWE-17 DEPRECATED: Code
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.