CVE-2017-11588 : Security Advisory and Response

Cisco DDR2200 and DDR2201v1 ADSL2+ Residential Gateways are vulnerable to remote command execution through shell metacharacters in the pingAddr parameter.

Understanding CVE-2017-11588

These devices allow remote command execution, posing a significant security risk.

What is CVE-2017-11588?

The vulnerability in Cisco DDR2200 and DDR2201v1 ADSL2+ Residential Gateways enables attackers to execute commands remotely using shell metacharacters in the pingAddr parameter.

The Impact of CVE-2017-11588

This vulnerability allows unauthorized individuals to execute commands on the affected devices, potentially leading to unauthorized access and data breaches.

Technical Details of CVE-2017-11588

The following technical aspects provide insight into the vulnerability.

Vulnerability Description

The flaw permits remote command execution through shell metacharacters in the pingAddr parameter of the waitPingqry.cgi URI on Cisco DDR2200 and DDR2201v1 ADSL2+ Residential Gateways.

Affected Systems and Versions

Cisco DDR2200 ADSL2+ Residential Gateway DDR2200B-NA-AnnexA-FCC-V00.00.03.45.4E
Cisco DDR2201v1 ADSL2+ Residential Gateway DDR2201v1-NA-AnnexA-FCC-V00.00.03.28.3

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting shell metacharacters in the pingAddr parameter, allowing them to execute commands remotely and view the command output at /PingMsg.cmd.

Mitigation and Prevention

Protecting against CVE-2017-11588 is crucial for maintaining security.

Immediate Steps to Take

Disable remote management if not required
Implement firewall rules to restrict access to the affected devices
Regularly monitor network traffic for any suspicious activities

Long-Term Security Practices

Keep devices up to date with the latest firmware and security patches
Conduct regular security audits and penetration testing to identify vulnerabilities

Patching and Updates

Apply patches provided by Cisco to address the vulnerability and enhance device security