CyberRota Analysis
AI-GeneratedA vulnerability in Develar's app-builder allows attackers to exploit Unicode Normalization Collisions and symlink following behavior to overwrite arbitrary files on macOS APFS. This occurs when a crafted ZIP archive contains a symlink and a regular file with equivalent Unicode names, leading to unauthorized file modifications. Organizations using this app-builder should prioritize patching this vulnerability to mitigate the risk of data loss or system compromise.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
A vulnerability in the `zipx.Unzip` extraction routine of Develar's app-builder allows an attacker to overwrite arbitrary files on macOS APFS by exploiting a Unicode Normalization Collision combined with symlink following behavior. APFS treats certain Unicode equivalent filenames as identical (e.g., ß ↔ ss), while app builder performs no canonical normalization before validating or writing paths. As a result, a crafted ZIP archive containing: • a symlink entry named ss pointing to a target file, and • a regular file named ß containing attacker controlled data, will cause the second write to follow the symlink and overwrite the target file.