CVE-2023-27796 Explained : Impact and Mitigation

This CVE pertains to command injection vulnerabilities found in certain models of RG-EW series wireless routers.

Understanding CVE-2023-27796

This CVE highlights multiple command injection vulnerabilities present in RG-EW series wireless routers, specifically in the runPackDiagnose function of diagnose.lua.

What is CVE-2023-27796?

CVE-2023-27796 refers to the discovery of command injection vulnerabilities in RG-EW1200G PRO Wireless Routers EW_3.0(1)B11P204, RG-EW1800GX PRO Wireless Routers EW_3.0(1)B11P204, and RG-EW3200GX PRO Wireless Routers EW_3.0(1)B11P204. These vulnerabilities are attributed to the data.ip, data.protocal, data.iface, and data.package parameters within the diagnose.lua file.

The Impact of CVE-2023-27796

If exploited, these vulnerabilities could allow an attacker to execute arbitrary commands on the affected wireless routers. This could potentially lead to unauthorized access, data theft, or disruption of network services.

Technical Details of CVE-2023-27796

The technical details of this CVE provide insight into the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerabilities in the specified wireless routers allow for command injection by manipulating certain parameters in the runPackDiagnose function of diagnose.lua.

Affected Systems and Versions

The affected systems include RG-EW1200G PRO Wireless Routers EW_3.0(1)B11P204, RG-EW1800GX PRO Wireless Routers EW_3.0(1)B11P204, and RG-EW3200GX PRO Wireless Routers EW_3.0(1)B11P204.

Exploitation Mechanism

By exploiting the vulnerabilities via the data.ip, data.protocal, data.iface, and data.package parameters, an attacker could inject and execute malicious commands on the targeted wireless routers.

Mitigation and Prevention

To address CVE-2023-27796 and enhance overall cybersecurity posture, certain mitigation and prevention measures can be implemented.

Immediate Steps to Take

Organizations should promptly update the firmware of the affected wireless routers to mitigate the command injection vulnerabilities.
Network administrators should restrict access to the routers to authorized personnel only.

Long-Term Security Practices

Regular security assessments and audits should be conducted to identify and address vulnerabilities proactively.
Implementing network segmentation and access controls can help limit the impact of potential exploits.

Patching and Updates

Stay informed about security advisories from the router manufacturer and promptly apply patches and updates to ensure the latest security measures are in place.