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TITLE:
D-Link DIR-100 Ethernet Broadband Router URL Filtering Bypass

SECUNIA ADVISORY ID:
SA31767

VERIFY ADVISORY:
http://secunia.com/advisories/31767/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
>From local network

OPERATING SYSTEM:
D-Link DIR-100 Ethernet Broadband Router
http://secunia.com/product/19762/

DESCRIPTION:
Marc Ruef has reported a vulnerability in D-Link DIR-100 Ethernet
Broadband Router, which can be exploited by malicious people to
bypass the URL filtering functionality.

The vulnerability is caused due to an error within the parental
control when handling certain requested URLs and can be exploited to
access forbidden websites via long, specially crafted requests.

The vulnerability is reported in all firmware versions up to version
1.12. Other versions may also be affected.

SOLUTION:
Do not rely on the filtering mechanism. Use another product to
restrict network access.

PROVIDED AND/OR DISCOVERED BY:
Marc Ruef, scip AG

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2008-September/064303.html

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