CVE-2022-24823: Local Information Disclosure Vulnerability in io.netty:netty-codec-http

Vulnerability summary

CVE-2022-24823 is a medium (CVSS 5.5) vulnerability in netapp active_iq_unified_manager. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 64.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 06-05-2022
   PublishedVulnerability first disclosed.
2. 22-04-2025
   Last modifiedVulnerability information updated.

Description

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.

• CWE-378Creation of Temporary File With Insecure PermissionsOpening temporary files without appropriate measures or controls can leave the file, its contents and any function that it impacts vulnerable to attack.
• CWE-379Creation of Temporary File in Directory with Insecure PermissionsThe product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file.
• CWE-668Exposure of Resource to Wrong SphereThe product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.