PT-2017-18949 · Arris+1 · Arris Tg1682G+1

Chris Grayson + 2 · Published 2017-07-31 · Updated 2021-09-13 · CVE-2017-9476

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Cisco DPC3939 version dpc3939-P20-18-v303r20421733-160420a-CMCST Cisco DPC3939 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)

Description The issue allows remote attackers to easily determine the hidden SSID and passphrase for a Home Security Wi-Fi network. This is due to a problem in the Comcast firmware on the affected devices.

Recommendations For Cisco DPC3939 version dpc3939-P20-18-v303r20421733-160420a-CMCST, update the firmware to a version that is not affected by this issue. For Cisco DPC3939 version dpc3939-P20-18-v303r20421746-170221a-CMCST, update the firmware to a version that is not affected by this issue. For Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682 2.2p7s2 PROD sey), update the firmware to a version that is not affected by this issue. As a temporary workaround, consider changing the Wi-Fi network settings to use a different security method until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2017-9476

Affected Products

Arris Tg1682G

Cisco Dpc3939

References · 6

• 🔥 https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-18.home-security-wifi-network.txt · Exploit
• 🔥 https://github.com/wiire-a/CVE-2017-9476 · Exploit
• https://osv.dev/vulnerability/CVE-2017-9476 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-9476 · Security Note
• https://t.me/cvenotify/20750 · Telegram Post
• https://t.me/cvenotify/19904 · Telegram Post