CVE-2024-21632

Public Exploit
omniauth-microsoft_graph vulnerable to account takeover (nOAuth)

Description

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.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.24%
Vendor Advisory github.com
Affected: synth omniauth-microsoft_graph
Published at:
Updated at:

References

Link Tags
https://github.com/synth/omniauth-microsoft_graph/security/advisories/GHSA-5g66-628f-7cvj vendor advisory
https://github.com/synth/omniauth-microsoft_graph/commit/f132078389612b797c872b45bd0e0b47382414c1 patch
https://www.descope.com/blog/post/noauth exploit

Frequently Asked Questions

What is the severity of CVE-2024-21632?
CVE-2024-21632 has been scored as a high severity vulnerability.
How to fix CVE-2024-21632?
To fix CVE-2024-21632, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-21632 being actively exploited in the wild?
It is possible that CVE-2024-21632 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-21632?
CVE-2024-21632 affects synth omniauth-microsoft_graph.
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