PT-2017-18950 · Cisco · Cisco Dpc3939

Chris Grayson + 2 · Published 2017-07-31 · Updated 2017-08-03 · CVE-2017-9477

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

Description The issue allows remote attackers to discover the CM MAC address by connecting to the device's xfinitywifi hotspot.

Recommendations For Cisco DPC3939 version dpc3939-P20-18-v303r20421733-160420a-CMCST, consider disabling the xfinitywifi hotspot until a patch is available. For Cisco DPC3939 version dpc3939-P20-18-v303r20421746-170221a-CMCST, consider disabling the xfinitywifi hotspot until a patch is available.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2017-9477

Affected Products

Cisco Dpc3939

References · 3

• 🔥 https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-19.wifi-dhcp-cm-mac-leak.txt · Exploit
• https://osv.dev/vulnerability/CVE-2017-9477 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-9477 · Security Note