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.
References
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https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-20.emta-reverse-dns.txt | Exploit Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2017-07-30 20:29
Updated : 2017-08-03 04:36
NVD link : CVE-2017-9478
Mitre link : CVE-2017-9478
JSON object : View
CWE
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
Products Affected
cisco
- dpc3939_firmware
- dpc3939