CVE-2022-26994 : Exploit Details and Defense Strategies

Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05, and SBR-AC1200P 1.0.5-B05 have been found to have a command injection vulnerability in the pptp function, allowing attackers to execute arbitrary commands through crafted requests.

Understanding CVE-2022-26994

This CVE refers to a critical vulnerability in Arris routers that could be exploited by malicious actors to run unauthorized commands on the affected devices.

What is CVE-2022-26994?

The vulnerability in Arris routers SBR-AC1900P, SBR-AC3200P, and SBR-AC1200P enables attackers to execute arbitrary commands by leveraging the pptpUserName and pptpPassword parameters.

The Impact of CVE-2022-26994

This vulnerability poses a severe risk as it allows threat actors to take control of affected routers and perform malicious activities, compromising the security and privacy of users' network data.

Technical Details of CVE-2022-26994

Here are the technical aspects related to this security issue:

Vulnerability Description

The vulnerability arises from improper handling of user input in the pptp function of Arris routers, leading to command injection through specific parameters.

Affected Systems and Versions

Arris SBR-AC1900P version 1.0.7-B05
Arris SBR-AC3200P version 1.0.7-B05
Arris SBR-AC1200P version 1.0.5-B05

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious requests containing crafted values for pptpUserName and pptpPassword, triggering the execution of unauthorized commands on the affected devices.

Mitigation and Prevention

To safeguard your systems from CVE-2022-26994, consider the following preventive measures:

Immediate Steps to Take

Disable remote management access to the affected routers if not needed
Implement strong firewall rules to restrict unauthorized network access

Long-Term Security Practices

Regularly update firmware and security patches provided by the vendor
Monitor network traffic for any suspicious activities or unauthorized access attempts

Patching and Updates

Vendor patches and updates should be promptly applied to mitigate the risk of exploitation through this vulnerability.