WinRAR failed to properly sanitize these paths, allowing the file to be written outside the intended extraction folder. ⚠️ Security Implications
When a user opens "22793.rar" (or similar ACE-based exploits): 22793.rar
The malware would run automatically the next time the user logged in. 📂 Technical Breakdown WinRAR failed to properly sanitize these paths, allowing
The file is a well-known proof-of-concept (PoC) archive used to demonstrate a critical vulnerability in WinRAR (tracked as CVE-2018-20250 ). WinRAR had over 500 million users when the bug was found
WinRAR had over 500 million users when the bug was found. ✅ How to Stay Safe Update WinRAR: Ensure you are using version 5.70 or newer .
The flaw existed in unacev2.dll , a third-party library WinRAR used to unpack files. Path Traversal: Attackers could bypass folder restrictions.
For years, this was one of the most "reliable" ways for hackers to infect systems because: Users generally trust .rar files.