PT-2017-2837 · Cisco · Cisco Dpc3939

Chris Grayson + 2 · Published 2017-07-31 · Updated 2019-10-03 · CVE-2017-9479

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco DPC3939 version dpc3939-P20-18-v303r20421746-170221a-CMCST

Description The issue allows remote attackers to execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server. This can be achieved by copying configuration data into a readable filesystem, thus enabling the execution of shell commands with root privileges.

Recommendations For Cisco DPC3939 version dpc3939-P20-18-v303r20421746-170221a-CMCST, consider restricting access to the syseventd server as a temporary workaround until a patch is available. Additionally, limiting local network access can help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Permission

Weakness Enumeration

CWE-732

CWE-264

Related Identifiers

BDU:2017-02117

CVE-2017-9479

Affected Products

Cisco Dpc3939

References · 4

• 🔥 https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-22.syseventd.txt · Exploit
• https://bdu.fstec.ru/vul/2017-02117 · Security Note
• https://osv.dev/vulnerability/CVE-2017-9479 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-9479 · Security Note