CVE-2021-39171

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.
Overview
  • CVE ID
  • CVE-2021-39171
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-08-27T22:15:07
  • Last Modified Date
  • 2021-09-07T18:36:11
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:passport-saml_project:passport-saml:*:*:*:*:*:node.js:*:* 1 OR 3.1.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2 Third Party Advisory
https://github.com/node-saml/passport-saml/pull/595 Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-39171
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39171
History
Created Old Value New Value Data Type Notes
2022-05-10 16:07:49 Added to TrackCVE
2022-12-05 09:13:11 2021-08-27T22:15Z 2021-08-27T22:15:07 CVE Published Date updated
2022-12-05 09:13:11 2021-09-07T18:36:11 CVE Modified Date updated
2022-12-05 09:13:11 Analyzed Vulnerability Status updated