Security News > 2023 > February > SonicWall warns web content filtering is broken on Windows 11 22H2
Security hardware manufacturer SonicWall warned customers today of what it describes as a "Limitation" of the web content filtering feature on Windows 11, version 22H2 systems.
"We have identified an inconsistency in Capture Client Windows 3.7.6 and older clients on endpoints running Windows 11 version 22H2," the company said in an advisory published on Wednesday.
The service is broken because the encrypted and decrypted requests and responses exchanged between Windows endpoints and SonicWall Content Filtering Service are sent using Microsoft's Cryptographic Application Programming Interface.
As SonicWall further explains, "In Windows 11 version 22H2, Microsoft CryptoAPIs have been modified, making Capture Client unable to decrypt responses from the SonicWall Content Filtering Service."
The company says it's currently working on a fix for this issue which will be made available with the release of Capture Client 3.7.7 for Windows on February 17th. SonicWall also provides a workaround that requires admins not to update Windows endpoints in their environment to the latest Windows 11 version, which breaks content filtering.
"As a temporary workaround, we recommend endpoints running Windows 11 not be upgraded to version 22H2 until Capture Client 3.7.7 for Windows is available," SonicWall said.