CVE-2024-21632
HIGHomniauth-microsoft_graph < 2.0.0 - Improper Authentication via Email Attribute Misconfiguration
Title source: llmDescription
omniauth-microsoft_graph provides an Omniauth strategy for the Microsoft Graph API. Prior to versions 2.0.0, the implementation did not validate the legitimacy of the `email` attribute of the user nor did it give/document an option to do so, making it susceptible to nOAuth misconfiguration in cases when the `email` is used as a trusted user identifier. This could lead to account takeover. Version 2.0.0 contains a fix for this issue.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/synth/omniauth-microsoft_graph/security/advisories/GHSA-5g66-628f-7cvj
Patch x_refsource_misc
https://github.com/synth/omniauth-microsoft_graph/commit/f132078389612b797c872b45bd0e0b47382414c1
Exploit x_refsource_misc
https://www.descope.com/blog/post/noauth
Scores
CVSS v3
8.6
EPSS
0.0031
EPSS Percentile
54.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-287
Status
published
Products (2)
recognizeapp/omniauth\
< 2.0.0
rubygems/omniauth-microsoft_graph
0 - 2.0.0RubyGems
Published
Jan 02, 2024
Tracked Since
Feb 18, 2026