11223 : Hawking HAR11A and HAR14A Router Unauthenticated Administrative Access
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Info

Last Modified
7 months ago

Percent Complete
100%

Disclosure
Oct 26, 2004

Discovery
Unknown

Dates

Exploit
Oct 26, 2004

Solution
Unknown

Description

 ADSL Modem Router HAR11A and 4-port ADSL Modem Router HAR14A contain a flaw that may allow an attacker to obtain access to the router's administrative interface. The issue is triggered when the attacker uses telnet to connect to port 23, 254, or 255. The flaw allows unauthorized access to the router's management interface resulting in a loss of confidentiality.

Classification

 Location: Remote/Network Access Required
Attack Type: Authentication Management
Impact: Loss of Confidentiality
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

 Upgrade to firmware version CX82xxx_4.1.0.21 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s):
1) Use the "Virtual Host" feature in the modem's browser interface to forward ports 23, 254, and 255 to a nonexistent host (such as "10.0.209.5"). This still allows access from the firewall side of the modem, however.
2) Put the modem into "bridge mode" and do all your NAT, PPPoE, and security from your linux firewall.

Products
Hawking Technology
Watch-list
ADSL Modem Router HAR11A
Watch-list
 ETHADSL_USB_080902_REL9P
4-port ADSL Modem Router HAR14A
Watch-list
 ETHADSL_USB_080902_REL9P

References

Credit
  • Marcus Garvey - dartrollerBrand New Doo Doomad.scientist.com -

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