BigPond Wireless Broadband Gateway 3G21WB Undocumented

by Carol~ Moderator - 10/12/12 7:06 AM

In Reply to: VULNERABILITIES / FIXES - October 12, 2012 by Carol~ Moderator

BigPond Wireless Broadband Gateway 3G21WB Undocumented Account and Command Injection

Release Date : 2012-10-12

Criticality level : Moderately critical
Impact: Security Bypass
System access
Where : From local network
Solution Status : Unpatched

Operating System : BigPond Wireless Broadband Gateway 3G21WB

Description:
Roberto Paleari has reported two security issues in BigPond Wireless Broadband Gateway 3G21WB, which can be exploited by malicious people to bypass certain security restrictions and compromise a vulnerable device.

1) The appliance includes an undocumented "Monitor" account with default credentials "bigpond1" and can be exploited to gain access to the web server.

2) An input validation error in the "ping.cgi" script can be exploited to inject arbitrary shell commands via specially crafted HTTP GET requests.

Solution:
No official solution is currently available.

Provided and/or discovered by:
Roberto Paleari

Original Advisory:
http://archives.neohapsis.com/archives/bugtraq/2012-10/0072.html

http://secunia.com/advisories/50951/