National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-9478 Detail

Current Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices sets the CM MAC address to a value with a two-byte offset from the MTA/VoIP MAC address, which indirectly allows remote attackers to discover hidden Home Security Wi-Fi networks by leveraging the embedding of the MTA/VoIP MAC address into the DNS hostname.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-20.emta-reverse-dns.txt Exploit Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Information Exposure NIST  

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst
     Show Matching CPE(s)
Running on/with
 cpe:/h:cisco:dpc3939:-
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:/o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421733-160420a-cmcst
     Show Matching CPE(s)
Running on/with
 cpe:/h:cisco:dpc3939:-
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-9478
NVD Published Date:
07/30/2017
NVD Last Modified:
08/03/2017