Remote Access Vulnerability in Cisco DPC3939 Firmware by Comcast
CVE-2017-9481

7.5HIGH

Key Information:

Vendor

Cisco
Status
Dpc3939 Firmware
Vendor
CVE Published:
31 July 2017

What is CVE-2017-9481?

The firmware on Cisco DPC3939 devices provided by Comcast contains a flaw that allows remote attackers to gain unauthorized access to the device’s Network Processor. By adding a malicious routing-table entry that designates a local Area Network (LAN) IP address as the router for the NP network (169.254/16), attackers can exploit this vulnerability to intercept and manipulate network traffic, compromising the overall security of the device and the network it serves.

References

https://github.com/BastilleResearch/CableTap/blob/master/...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2017-9481 : Remote Access Vulnerability in Cisco DPC3939 Firmware by Comcast