SureCom Network Device Malformed Web Authorization Request Denial Of Service Vulnerability

Bugtraq ID:	9795
Class:	Failure to Handle Exceptional Conditions
CVE:
Remote:	Yes
Local:	No
Published:	Mar 02 2004 12:00AM
Updated:	Mar 02 2004 12:00AM
Credit:	Discovery credited to Vasco Costa.
Vulnerable:	Surecom EP-9510AX Surecom EP-4504AX
Not Vulnerable:

SureCom Network Device Malformed Web Authorization Request Denial Of Service Vulnerability

An issue in the handling of specific web requests by SureCom network devices has been identified. By placing a malformed request to the web configuration interface, it is possible for an attacker to deny service to legitimate users of a vulnerable device.

SureCom Network Device Malformed Web Authorization Request Denial Of Service Vulnerability

The following proof-of-concept example has been made available by Vasco Costa:

Authorization: B 00000000

Proof-of-concept exploit code has also been released.

• /data/vulnerabilities/exploits/surecom-tester.pl
• /data/vulnerabilities/exploits/surecomkill.c

SureCom Network Device Malformed Web Authorization Request Denial Of Service Vulnerability

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: [email protected] <mailto:[email protected]>.

SureCom Network Device Malformed Web Authorization Request Denial Of Service Vulnerability

References:

• Vendor Homepage (Surecom)