What is the severity of CVE-2017-9487?

The severity of CVE-2017-9487 is considered medium due to the potential for information disclosure.

How do I fix CVE-2017-9487?

To fix CVE-2017-9487, upgrade to a firmware version that addresses this vulnerability.

Can CVE-2017-9487 be exploited remotely?

Yes, CVE-2017-9487 can be exploited remotely by attackers who know the CM MAC address.

What type of information can be disclosed through CVE-2017-9487?

CVE-2017-9487 allows remote attackers to discover a WAN IPv6 IP address.

Vulnerability/
CVE-2017-9487

medium

5.9

CWE

200

31/7/2017

2/8/2017

CVE-2017-9487: Infoleak

First published: Mon Jul 31 2017(Updated: )

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) and DPC3941T (firmware version DPC3941_2.5s3_PROD_sey) devices allows remote attackers to discover a WAN IPv6 IP address by leveraging knowledge of the CM MAC address.

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
Cisco DPC3941T Firmware	=dpc3941_2.5s3_prod_sey
Cisco DPC3941T Firmware

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Reference Links

https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-30.wan0-ipv6-cm-mac.txt

Frequently Asked Questions

What is the severity of CVE-2017-9487?
The severity of CVE-2017-9487 is considered medium due to the potential for information disclosure.
How do I fix CVE-2017-9487?
To fix CVE-2017-9487, upgrade to a firmware version that addresses this vulnerability.
What devices are affected by CVE-2017-9487?
CVE-2017-9487 affects Cisco DPC3939 devices with firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST and DPC3941T with firmware version DPC3941_2.5s3_PROD_sey.
Can CVE-2017-9487 be exploited remotely?
Yes, CVE-2017-9487 can be exploited remotely by attackers who know the CM MAC address.
What type of information can be disclosed through CVE-2017-9487?
CVE-2017-9487 allows remote attackers to discover a WAN IPv6 IP address.

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agent/softwarecombine
agent/tags
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agent/author
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collector/nvd-index
agent/software-canonical-lookup-request
vendor/cisco
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
canonical/cisco dpc3941t firmware
version/cisco dpc3941t firmware/dpc3941_2.5s3_prod_sey

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