CVE-2022-26990 : What You Need to Know

Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05, and SBR-AC1200P 1.0.5-B05 were found to have a critical command injection vulnerability that could be exploited by attackers to execute arbitrary commands.

Understanding CVE-2022-26990

This CVE identifies a security flaw in Arris routers that could lead to unauthorized command execution on the affected devices.

What is CVE-2022-26990?

The vulnerability in Arris routers SBR-AC1900P, SBR-AC3200P, and SBR-AC1200P versions allows attackers to run malicious commands through specific parameters, leading to a compromise of the device's security.

The Impact of CVE-2022-26990

The command injection vulnerability poses a significant risk as it enables threat actors to gain unauthorized access to the routers, potentially resulting in data theft, network compromise, and other serious security breaches.

Technical Details of CVE-2022-26990

Let's delve into the technical aspects of the CVE to understand the vulnerability better.

Vulnerability Description

The flaw resides in the firewall-local log function of the affected routers, specifically within parameters such as EmailAddress, SmtpServerName, SmtpUsername, and SmtpPassword. This weakness allows attackers to exploit the system by injecting and executing malicious commands.

Affected Systems and Versions

Arris routers SBR-AC1900P 1.0.7-B05, SBR-AC3200P 1.0.7-B05, and SBR-AC1200P 1.0.5-B05 are confirmed to be impacted by this vulnerability. Users of these router models are urged to take immediate action to secure their devices.

Exploitation Mechanism

The exploit involves crafting a specific request to the firewall-local log function using the aforementioned parameters, tricking the system into executing unauthorized commands.

Mitigation and Prevention

Protecting your network and devices from CVE-2022-26990 requires proactive security measures and prompt actions.

Immediate Steps to Take

Update the affected devices to the latest firmware version provided by the manufacturer.
Disable remote access to the routers if not required.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch all network devices to ensure they are protected against known vulnerabilities.
Implement strong password policies and ensure secure configurations for your routers.

Patching and Updates

Stay informed about security updates released by Arris for your router models and apply them promptly to mitigate the risk of exploitation.