CVE-2023-21242 Security feature bypass in Android
A logic error in Android's EAP network handler allows attackers to trust imposter servers, leading to remote privilege escalation without user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-21242?
CVE-2023-21242 is a critical vulnerability in Google Android, published on 14 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Which versions are affected by CVE-2023-21242?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2023-21242?
Apply the vendor's patch.
Is CVE-2023-21242 being exploited?
There is no known exploitation of CVE-2023-21242 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-277824547, ASB-A-277824547, GHSA-mrx5-4724-2c6h.