CVE-2022-24823

Summary

Netty is an open-source, asynchronous event-driven network application framework. The package io.netty:netty-codec-http prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own java.io.tmpdir when starting the JVM or use DefaultHttpDataFactory.setBaseDir(…) to set the directory to something that is only readable by the current user.

Affected Software

VendorProductVersion RangeStatus
nettynetty<= 4.1.76.Finalaffected

Weaknesses

  • CWE-668: CWE-668: Exposure of Resource to Wrong Sphere
  • CWE-378: CWE-378: Creation of Temporary File With Insecure Permissions
  • CWE-379: CWE-379: Creation of Temporary File in Directory with Insecure Permissions

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References