Incorrect Permission Assignment for Critical Resource

CVE-2017-9479

High

9.8/10

Summary

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server, as demonstrated by copying configuration data into a readable filesystem.

Attack Complexity: LOW
Attack Vector: NETWORK
Integrity Impact: HIGH
Scope: UNCHANGED
User Interaction: NONE
Privileges Required: NONE
Confidentiality Impact: HIGH
Availability Impact: HIGH

CWE-732 - Incorrect Permission Assignment for Critical Resource

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

References

Advisory Timeline

Published Jul 31, 2017