Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
CableTap/doc/advisories/bastille-18.home-security-wifi-network.txt
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
51 lines (23 sloc)
1.47 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Bastille Tracking Number 18 | |
| CVE-2017-9476 | |
| Overview | |
| A vulnerability has been discovered that enables an attacker to connect to a hidden Wi-Fi access point running on a Comcast customer's gateway. This allows the attacker to access the Internet for free, and attribute any malicious activity to the Comcast customer they are targeting. | |
| Affected Platforms | |
| Cisco DPC3939, firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST | |
| Cisco DPC3939, firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST | |
| Arris TG1682G, eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey | |
| Proof-of-Concept | |
| Many residential gateways include a hidden home security Wi-Fi network, which is active regardless of whether or not the customer is subscribed to this service. | |
| There is a deterministic way to generate the hidden SSID and its passphrase. | |
| Test Environment | |
| Cisco DPC3939, firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST | |
| Cisco DPC3939, firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST | |
| Arris TG1682G, eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey | |
| Mitigation | |
| There is no apparent mechanism to allow customers to disable this Wi-Fi network. | |
| Recommended Remediation | |
| Disable the home security network for customers who do not subscribe to this service. | |
| Use secure passphrases which cannot be generated using readily available information. | |
| Credits | |
| Marc Newlin and Logan Lamb, Bastille | |
| Chris Grayson, Web Sight.IO |