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Home arrow SecurityAlert Database

Arrow  Topic :

D-LINK DWL-2000AP+ remote DoS


Arrow  SecurityAlert : 2029
Arrow  CVE : CVE-2006-6538
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : poplix
Arrow  Published : 14.12.2006

Arrow  Affected Software : D-LINK DWL-2000AP



Arrow  Advisory Content :  

D-LINK DWL-2000AP+ with firmware version 2.11 is prone to two remote denial
of service vulnerability because it fails to handle arp flooding.
The first vuln causes the wireless link (802.11) to be resetted and the arp
table to be rebuilded. All clients connected to the AP are disconnected.
This bug can be triggered by sending lots of arp replies through the wired
link or the radio one at a very high speed.
The second vulnerability affects the wireless link only and are quite
harder to trigger but causes the AP firmware to crash making a manual
reboot mandatory.
This bug can be triggered only if no other D-LINK ethernet products are
visible to AP, if wep encryption is enabled and it needs a very large
amount of arp-requests to be broadcasted through its wireless link at a
very high speed.
This exploit works in the 90% of cases because sometimes the AP is able to
ban the flooding client before the exploiting process is complete.
D-LINK doesn't support this product anymore so no solution is available.
Other products can be vulnerable.

Not vulnerable: DWL-700AP

Proof-of-concept availale,
it floods an ethernet device with arp-reply or arp-request
http://tripp.dynalias.org/arpflood.c

cheers

-poplix




Arrow  Feedback :

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