PT-2023-23396 · Unknown · Light-Oauth2

Kanixbo · Published 2023-10-24 · Updated 2023-10-31 · CVE-2023-31580

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions light-oauth2 versions prior to 2.1.27

Description The issue allows attackers to authenticate to the application with a crafted JWT token because the public key is obtained without verification.

Recommendations For versions prior to 2.1.27, update to version 2.1.27 or later to resolve the issue.

Exploit

Fix

Improper Certificate Validation

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-295

CWE-347

Related Identifiers

CVE-2023-31580

GHSA-MX47-H5FV-GHWH

Affected Products

Light-Oauth2

References · 7

• 🔥 https://github.com/KANIXB/JWTIssues/blob/main/Certification%20Verification%20issue%20in%20light-oauth2.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-31580 · Security Note
• https://osv.dev/vulnerability/CVE-2023-31580 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-mx47-h5fv-ghwh · Vendor Advisory
• https://github.com/networknt/light-oauth2 · Note
• https://github.com/networknt/light-oauth2/issues/369 · Note
• https://twitter.com/CVEnew/status/1716945050771271861 · Twitter Post