J-Security Center

Title: Motorola SB4200 Remote Denial of Service Vulnerability

Severity: MODERATE

Description:

Motorola SB4200 is an external cable modem.

The device is prone to a denial-of-service vulnerability that occurs when excessively large data packets are transmitted to the affected device. In particular, this issue occurs when handling HTTP requests with an excessively large 'mfcisapicommand' parameter.

This may permit an attacker to crash affected devices, denying further network services to legitimate users.

Affected Products:

  • Motorola Cable Modem SB4200

References:

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