CVE-2017-2673: Keystone OpenStack Identity Service (keystone) Incorrect Vulnerability

HIGH
Advisory Identifier: GHSA-j36m-hv43-7w7m
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CVSS 7.2
CWE-863
Published
Advisory Summary

CVE-2017-2673 is a HIGH (CVSS 7.2) openstack identity service (keystone) incorrect vulnerability (CWE-863: Incorrect Authorization) affecting Keystone libraries in the PyPI ecosystem. The issue involves openstack identity service (keystone) incorrect authorization. Remediation is available by upgrading affected packages to version 10.0.2, 11.0.1.

CVE-2017-2673 at a Glance

CVE Identifier CVE-2017-2673
GHSA Identifier GHSA-j36m-hv43-7w7m
Severity HIGH
CVSS v3.1 Base Score 7.2
CWE Classification CWE-863: Incorrect Authorization
Affected Product Keystone
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2017-2673

To remediate this vulnerability, upgrade all affected Keystone dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

keystone fixed: Latest secure release 
pip install keystone>=Latest secure release
keystone fixed: 10.0.2 
pip install keystone>=10.0.2
keystone fixed: 11.0.1 
pip install keystone>=11.0.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show keystone

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2017-2673, inspect your installed packages using pip:

pip show keystone

Analyze the terminal output to locate any version of Keystone in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.0.2), your application is affected.

Note: The pip show keystone command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Keystone, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An authorization-check flaw was discovered in federation configurations of the OpenStack Identity service (keystone). An authenticated federated user could request permissions to a project and unintentionally be granted all related roles including administrative roles.

CVE-2017-2673 Affected Keystone Versions

3 component(s)
Fixed Versions:
10.0.211.0.1
Product / Package Ecosystem Affected Versions Fixed Version
keystone
pypi/keystone
PyPI
≥ 9.0.0
≤ 9.3.0
keystone
pypi/keystone
PyPI
≥ 10.0.0
< 10.0.2
10.0.2
keystone
pypi/keystone
PyPI
≥ 11.0.0
< 11.0.1
All 1 versions
11.0.0
11.0.1

References

NVD — CVE-2017-2673 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-2673
Security Fix Commit FIX COMMIT
https://github.com/openstack/keystone/commit/05a129e54573b6cbda1ec095f4526f2b9ba90a90
Security Fix Commit FIX COMMIT
https://github.com/openstack/keystone/commit/2139639eeabc8f6941f4461fc87d609cde3118c2
access.redhat.com/errata/rhsa-2017:14... WEB
https://access.redhat.com/errata/RHSA-2017:1461
access.redhat.com/errata/rhsa-2017:15... WEB
https://access.redhat.com/errata/RHSA-2017:1597
Keystone Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2017-2673
bugs.launchpad.net/keystone/+bug/16777... WEB
https://bugs.launchpad.net/keystone/+bug/1677723
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1439586
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2673
Keystone Source Repository REPOSITORY
https://github.com/openstack/keystone
Keystone Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2018-152.yaml
seclists.org/oss-sec/2017/q2/125 WEB
http://seclists.org/oss-sec/2017/q2/125
Keystone Security Information SECURITY
http://www.securityfocus.com/bid/98032

Frequently Asked Questions

What is CVE-2017-2673?
CVE-2017-2673 is a security vulnerability in Keystone involving OpenStack Identity service (keystone) Incorrect Authorization under CWE-863: Incorrect Authorization.
Which Keystone versions are affected?
Affected versions include releases prior to 10.0.2, 11.0.1 across affected packages: keystone.
What version fixes CVE-2017-2673?
Upgrading to 10.0.2, 11.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keystone affected?
Yes, keystone is affected in releases prior to Latest secure release, 10.0.2, 11.0.1. Upgrade your dependency to Latest secure release, 10.0.2, 11.0.1 or later.
What is the CVSS score of CVE-2017-2673?
CVE-2017-2673 has a CVSS v3.1 base score of 7.2 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2017-2673?
CVE-2017-2673 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check PyPI dependencies for CVE-2017-2673?
Run the dependency tree command: 'pip show keystone'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-j36m-hv43-7w7m",
  "modified" : "2024-11-26T16:57:13Z",
  "published" : "2022-05-13T01:07:31Z",
  "aliases" : [ "CVE-2017-2673" ],
  "summary" : "OpenStack Identity service (keystone) Incorrect Authorization",
  "details" : "An authorization-check flaw was discovered in federation configurations of the OpenStack Identity service (keystone). An authenticated federated user could request permissions to a project and unintentionally be granted all related roles including administrative roles.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "keystone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "last_affected" : "9.3.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "keystone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.0.0"
      }, {
        "fixed" : "10.0.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 10.0.1"
    }
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "keystone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0"
      }, {
        "fixed" : "11.0.1"
      } ]
    } ],
    "versions" : [ "11.0.0" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-2673"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/keystone/commit/05a129e54573b6cbda1ec095f4526f2b9ba90a90"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/keystone/commit/2139639eeabc8f6941f4461fc87d609cde3118c2"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2017:1461"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2017:1597"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2017-2673"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/keystone/+bug/1677723"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1439586"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2673"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openstack/keystone"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2018-152.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/oss-sec/2017/q2/125"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/98032"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T17:26:51Z",
    "nvd_published_at" : "2018-07-19T13:29:00Z"
  }
}