Arescom NetDSL-800 Firmware Undocumented Username/Password Weakness

TITLE: Arescom NetDSL-800 Firmware Undocumented Username/Password Weakness
CLASS: Design Error
CVE:
REMOTE: Yes
LOCAL: No
PUBLISHED: Oct 29 2002 12:00AM
UPDATE: Oct 29 2002 12:00AM
CREDIT: Discovery of this vulnerability credited to Justin Cervero.
VULNERABLE:

Arescom NetDSL-800
NOT VULNERABLE:

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Discussion

A weakness has been discovered in NetDSL-800 router firmware.

It has been reported that NetDSL-800 firmware, configured by certain Internet Service Providers(ISP), contains undocumented users.

It is possible to obtain a target devices undocumented username and password using a network sniffer and the Arescom NetDSL Remote Manager. Access via undocumented accounts may allow attackers to corrupt configuration settings or cause a denial of service.

It should be noted that all firmware configurations may not contain undocumented users. Firmware configured by the MSN ISP has been reported vulnreable.

It should also be noted that it has not yet been confirmed whether unique username and passwords are generated for each device.

Exploit

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.

Solution

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.

References

References:

PhpLog

BNLug Benevento Linux Users Group