CVE-2023-21242 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	13.0

References

https://android.googlesource.com/platform/packages/modules/Wifi/+/72e903f258b504Patch
https://source.android.com/security/bulletin/2023-08-01PatchVendor Advisory
https://android.googlesource.com/platform/packages/modules/Wifi/+/72e903f258b504Patch
https://source.android.com/security/bulletin/2023-08-01PatchVendor Advisory

FAQ

What is CVE-2023-21242?

CVE-2023-21242 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 wit...

How severe is CVE-2023-21242?

CVE-2023-21242 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-21242?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.