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Belkin Wireless G Router Security Bypass and Denial of Service
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Secunia Advisory:
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SA29345
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Release Date:
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2008-03-19
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Last Update:
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2008-03-31
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Popularity:
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5,973 views
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Critical:
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Less critical
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Impact:
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Security Bypass
DoS
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Where:
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From local network
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Solution Status:
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Vendor Workaround
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| OS: | Belkin Wireless G Router
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| CVE reference: | CVE-2008-1242
CVE-2008-1244
CVE-2008-1245
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Description:
Some security issues and a vulnerability have been reported in the Belkin Wireless G Router, which can be exploited by malicious people to bypass certain security restrictions or cause a DoS (Denial of Service).
1) An error in the implementation of authenticated sessions can be exploited to gain access to the router's control panel by establishing a session from a previously authenticated IP address.
2) An error exists within the enforcing of permissions in cgi-bin/setup_dns.exe. This can be exploited to perform restricted administrative actions by directly accessing the vulnerable script.
3) An error exists in the cgi-bin/setup_virtualserver.exe script when processing HTTP POST data. This can be exploited to deny further administrative access to an affected device via specially a crafted HTTP POST request with a "Connection: Keep-Alive" header.
The security issues and the vulnerability are reported in model F5D7230-4, firmware version 9.01.10. Other versions may also be affected.
Solution:
The vendor has made available a pre-release firmware version for vulnerability #2 and is reportedly working on a fix for vulnerability #3.
http://www.belkin.com/uk/support/arti...id=F5D7230uk4&aid=9080&scid=0
Provided and/or discovered by:
loftgaia
Changelog:
2008-03-31: Updated "Solution" section.
Original Advisory:
http://www.gnucitizen.org/projects/router-hacking-challenge/
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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