CVE-2024-21632 omniauth-microsoft_graph vulnerable to account takeover (nOAuth)
Attackers can take over accounts if the email attribute is trusted without validation, requiring a fix in the omniauth-microsoft_graph library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-21632?
CVE-2024-21632 is a high-severity authentication bypass vulnerability in synth omniauth-microsoft_graph, published on 2 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2024-21632?
2 open source packages ship an affected version, including omniauth-microsoft_graph. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
omniauth-microsoft_graph RubyGems | All versions | 2.0.0 |
omniauth-microsoft_graph RubyGems | All versions | 2.0.0 |
Products include Recognizeapp Omniauth\.
How do I fix CVE-2024-21632?
Upgrade omniauth-microsoft_graph to 2.0.0 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-21632 being exploited?
There is no known exploitation of CVE-2024-21632 in the wild and no public exploit code.
Sources
Also known as GHSA-5g66-628f-7cvj.