What is the severity of CVE-2017-9479?

CVE-2017-9479 is considered a high-severity vulnerability due to the potential for remote attackers to execute arbitrary commands as root.

How do I fix CVE-2017-9479?

To mitigate CVE-2017-9479, update the Cisco DPC3939 firmware to a version that is not vulnerable to this exploit.

What type of access is required to exploit CVE-2017-9479?

CVE-2017-9479 requires local network access to the affected device to successfully exploit the vulnerability.

What actions can attackers perform using CVE-2017-9479?

Attackers can execute arbitrary commands with root privileges through the syseventd server if they successfully exploit CVE-2017-9479.

Vulnerability/
CVE-2017-9479

critical

CWE

732

31/7/2017

3/10/2019

CVE-2017-9479

First published: Mon Jul 31 2017(Updated: )

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server, as demonstrated by copying configuration data into a readable filesystem.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Cisco DPC3939 Wireless Residential Voice Gateway Firmware	=dpc3939-p20-18-v303r20421746-170221a-cmcst
Cisco DPC3939B Firmware

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Reference Links

https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-22.syseventd.txt

Frequently Asked Questions

What is the severity of CVE-2017-9479?
CVE-2017-9479 is considered a high-severity vulnerability due to the potential for remote attackers to execute arbitrary commands as root.
How do I fix CVE-2017-9479?
To mitigate CVE-2017-9479, update the Cisco DPC3939 firmware to a version that is not vulnerable to this exploit.
Who is affected by CVE-2017-9479?
Users of the Cisco DPC3939 with the firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST are affected by CVE-2017-9479.
What type of access is required to exploit CVE-2017-9479?
CVE-2017-9479 requires local network access to the affected device to successfully exploit the vulnerability.
What actions can attackers perform using CVE-2017-9479?
Attackers can execute arbitrary commands with root privileges through the syseventd server if they successfully exploit CVE-2017-9479.

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canonical/cisco dpc3939 wireless residential voice gateway firmware
version/cisco dpc3939 wireless residential voice gateway firmware/dpc3939-p20-18-v303r20421746-170221a-cmcst
canonical/cisco dpc3939b firmware

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