CVE-2017-11361 Explained : Impact and Mitigation

Inteno routers have a vulnerability that allows the "user" account to perform unauthorized tasks, potentially compromising the system's security.

Understanding CVE-2017-11361

What is CVE-2017-11361?

The vulnerability in Inteno routers enables the "user" account to read and write files, as well as add root SSH keys through JSON commands to ubus, due to a misconfiguration in the JUCI ACL.

The Impact of CVE-2017-11361

Exploiting this vulnerability can lead to unauthorized access and control over the router, posing a significant security risk to the affected systems.

Technical Details of CVE-2017-11361

Vulnerability Description

The misconfiguration in the JUCI ACL of Inteno routers allows the "user" account to execute tasks beyond its intended permissions, potentially leading to unauthorized system access.

Affected Systems and Versions

Product: Inteno routers
Vendor: Inteno
Versions: All versions are affected

Exploitation Mechanism

The vulnerability can be exploited by using the default or easily guessable password for the "user" account, such as "user" or a Wi-Fi key match.

Mitigation and Prevention

Immediate Steps to Take

Change the default password for the "user" account to a strong, unique password.
Regularly monitor and audit user account activities on the router.

Long-Term Security Practices

Implement network segmentation to restrict access to critical systems.
Keep router firmware up to date to patch known vulnerabilities.

Patching and Updates

Apply security patches provided by Inteno to address the misconfiguration and enhance system security.