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🛡️ CVE-2014-2237 — keystone

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-1270 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenStack Identity (Keystone) Trustee token revocations does not work with memcache backend

The memcache token backend in OpenStack Identity (Keystone) 2013.1 through 2.013.1.4, 2013.2 through 2013.2.2, and icehouse before icehouse-3, when issuing a trust token with impersonation enabled, does not include this token in the trustee's token-index-list, which prevents the token from being invalidated by bulk token revocation and allows the trustee to bypass intended access restrictions.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Attack requirements: None — no deployment-specific condition has to hold.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Confidentiality impact: None.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2014-2237 is classified as CWE-1270: Generation of Incorrect Security Tokens. The product implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens generated in the system are incorrect.

Affected software

CVE-2014-2237 is recorded against 1 package.

  • keystone (fixed in 8.0.0a0)

Timeline and source

Published on 17 May 2022 and last revised on 13 April 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
bugs.launchpad.net (Web)
github.com (Package)
github.com (Web)
rhn.redhat.com (Web)
www.openwall.com (Web)

Other advisories for this package

keystone has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-1270: Generation of Incorrect Security Tokens) in other software:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CWE CWE-1270
Public Exploit ✅ No
Source OSV
Published 2022-05-17
Updated 2026-08-20
Modified 2025-04-13
Fix URL N/A

Affected Packages

Software From version Fixed in
keystone — 8.0.0a0

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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