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Auth0 Passport-SharePoint does not validate JWT signature

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jul 14, 2023

Package

npm passport-sharepoint (npm)

Affected versions

< 0.4.0

Patched versions

0.4.0

Description

Auth0 Passport-SharePoint before 0.4.0 does not validate the JWT signature of an Access Token before processing. This allows attackers to forge tokens and bypass authentication and authorization mechanisms.

References

Published by the National Vulnerability Database Jul 25, 2019
Published to the GitHub Advisory Database May 24, 2022
Last updated Jul 14, 2023
Reviewed Jul 14, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS score

0.092%
(41st percentile)

Weaknesses

CVE ID

CVE-2019-13483

GHSA ID

GHSA-45fh-g845-pj9w

Source code

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