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BDFL - Memuneh
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Topic # 160017 20-Dec-2014 12:42
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CERT Vulnerability Note: Multiple broadband routers use vulnerable versions of Allegro RomPager

Overview
Multiple broadband routers use vulnerable versions of Allegro RomPager in current firmware releases.

Description
Many home and office/home office (SOHO) routers have been found to be using vulnerable versions of the Allegro RomPager embedded web server. Allegro RomPager versions prior to 4.34 contain a vulnerability in cookie processing code that can be leveraged to grant attackers administrative privileges on the device. According to Check Point's advisory, the vulnerability was addressed by Allegro in 2005 but is present in current or recent firmware releases of many devices.

Impact
A remote, unauthenticated attacker may be able to execute arbitrary code on the device.

Solution
Apply an update
Check vendor websites for a firmware update that addresses this issue and apply it if available.

Use third-party firmware
Technical users may consider flashing to third-party firmware such as that provided by dd-wrt, openwrt, or others. Note that this action may invalidate device warranties.

Disable WAN services
If possible, disable services that listen for HTTP or HTTPS connections on the device's WAN side.

Check Point Software Technologies has published a list of devices (PDF) suspected of being vulnerable




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  Reply # 1202073 22-Dec-2014 14:25
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That's a lot of consumer modems/routers... TP Link, D-Link, Huawei etc

Most of those models don't get firmware updates from the manufacturer anymore either!

I've always advocated avoiding the ISP provided routers but the cheap alternatives are just as bad. It's getting to the point where you want to put Mikrotik or Ubiquity stuff in for friends and family.... better safe than sorry.

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  Reply # 1202076 22-Dec-2014 14:27
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Sounds like as long as you disable remote admin, you're OK.  I still can't think of any good reason to have this open.

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  Reply # 1202082 22-Dec-2014 14:32
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Generally remote web admin is disabled by default but the question is does the ui option in these devices really disable everything ie: disable all http from wan.

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