ERNW Security Advisory 01-2006 Buffer Overflow in Algorithmic Researchs PrivateWire Online Registration Facility Author: Michael Thumann <mthumann[at]ernw.de> Homepage: http://www.ernw.de 1. Summary: The Online Registration Facility of Algorithmic Research PrivateWire VPN Software doesn't do proper bounds checking handling normal GET requests. Sending an overlong page or script name, it causes a buffer overflow and an attacker can control the EIP to run arbitrary code on the victims machine. 2. Severity : Critical 3. Products affected All Versions of the PrivateWire Gateway Software up to version 3.7 4. Patch Availability : A patch is available from the vendor www.arx.com 5. Details The follwoing request causes PrivateWire to crash: GET /AAAAAA.....AAAA with 8160 As 6. Solution Contact the vendor and install the patch. 7. Time-Line 19 Dec 2005: Vulnerability reported to vendor 21 Dec 2005: Telephone conference with vendor 04 Apr 2006: Patch available 26 June 2006: Public Disclosure 8. Disclaimer The informations in this advisory are provided "AS IS" without warranty of any kind. In no event shall the authors be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages due to the misuse of any information provided in this advisory.