VulnerabilityModified
CVE-2023-21242
In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code.
CRITICAL 9.8EPSS 0.53%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Affected
- google/android
- Source
- security@android.com
References
- https://android.googlesource.com/platform/packages/modules/Wifi/+/72e903f258b5040b8f492cf18edd124b5a1ac770Patch
- https://source.android.com/security/bulletin/2023-08-01Patch, Vendor Advisory
- https://android.googlesource.com/platform/packages/modules/Wifi/+/72e903f258b5040b8f492cf18edd124b5a1ac770Patch
- https://source.android.com/security/bulletin/2023-08-01Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.