Buffer-overflow in Quicktime Player 7.3.1.70

2008.01.12
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 9.3/10
Impact Subscore: 10/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

####################################################################### Luigi Auriemma Application: Quicktime Player http://www.apple.com/quicktime Versions: <= 7.3.1.70 Platforms: Windows and Mac Bug: buffer-overflow Exploitation: remote Date: 10 Jan 2008 Thanx to: swirl for the help during the re-testing of the bug Author: Luigi Auriemma e-mail: aluigi (at) autistici (dot) org [email concealed] web: aluigi.org ####################################################################### 1) Introduction 2) Bug 3) The Code 4) Fix ####################################################################### =============== 1) Introduction =============== Quicktime is a well known media player developed by Apple. ####################################################################### ====== 2) Bug ====== The problem is a buffer-overflow which happens during the filling of the LCD-like screen containing info about the status of the connection. For exploiting this vulnerability is only needed that an user follows a rtsp:// link, if the port 554 of the server is closed Quicktime will automatically change the transport and will try the HTTP protocol on port 80, the 404 error message of the server (other error numbers are valid too) will be visualized in the LCD-like screen. During my tests I have been able to fully overwrite the return address anyway note that the visible effects of the vulnerability could change during the usage of the debugger (in attaching mode it's everything ok). ####################################################################### =========== 3) The Code =========== http://aluigi.org/poc/quicktimebof.txt nc -l -p 80 -v -v -n < quicktimebof.txt and then QuickTimePlayer.exe rtsp://127.0.0.1/file.mp3 ####################################################################### ====== 4) Fix ====== No fix ####################################################################### --- Luigi Auriemma http://aluigi.org


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