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🛡️ CVE-2012-5571 — keystone

⚪ Unknown ✅ No Known Exploit CWE-639 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenStack Keystone intended authorization restrictions bypass

OpenStack Keystone Essex (2012.1) and Folsom (2012.2) does not properly handle EC2 tokens when the user role has been removed from a tenant, which allows remote authenticated users to bypass intended authorization restrictions by leveraging a token for the removed user role.

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. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: None.

Weakness class

CVE-2012-5571 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.

Affected software

CVE-2012-5571 is recorded against 1 package.

  • keystone (fixed in 8.0.0a0)

Timeline and source

Published on 17 May 2022 and last revised on 10 June 2026. 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)
access.redhat.com (Web)
bugs.launchpad.net (Web)
exchange.xforce.ibmcloud.com (Web)
github.com (Package)
github.com (Web)
lists.fedoraproject.org (Web)
rhn.redhat.com (Web)
rhn.redhat.com (Web)
www.openwall.com (Web)
www.openwall.com (Web)
www.ubuntu.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-639: Authorization Bypass Through User-Controlled Key) in other software:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE CWE-639
Public Exploit ✅ No
Source OSV
Published 2022-05-17
Updated 2026-08-20
Modified 2026-06-10
Fix URL N/A

Affected Packages

Software From version Fixed in
keystone — 8.0.0a0

References

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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