Researchers Warn macOS textutil and KeePassXC Can Become Attack Primitives in Automation

The research highlights a significant security vulnerability related to the way untrusted input is processed by textutil (a command-line utility for macOS) and KeePassXC, a popular password manager. The core issue revolves around how these tools handle KDBX files, which are encrypted databases used by KeePassXC.

Key Points:

1. Resource Exhaustion via Metadata Manipulation:

   • Attackers can manipulate metadata within KDBX files to force textutil and KeePassXC to consume excessive CPU resources.
   • This is achieved by setting extremely high values for the key derivation function (KDF) parameters, which significantly increases the time required to process these files.

2. Impact on Automated Systems:

   • For automated systems that scan, validate, or batch-process many KDBX files at once, this behavior can exhaust CPU resources and degrade overall service availability.
   • The delay caused by processing a single file is manageable for individual users but can be catastrophic in an automated environment.

3. No Cryptographic Breaks:

   • It's important to note that no passwords are exposed, and no cryptographic primitives are broken during this process.
   • The risk lies entirely in the resource consumption driven by

Read the full article at Cyber Security News

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