CVE-2018-0122 : Vulnerability Insights and Analysis

An exploit has been discovered in the command-line interface (CLI) of the Cisco StarOS operating system, affecting Cisco ASR 5000 Series Aggregation Services Routers.

Understanding CVE-2018-0122

This CVE involves a vulnerability in the CLI of the Cisco StarOS operating system, potentially allowing a local attacker to manipulate system files stored in the flash memory of an affected system.

What is CVE-2018-0122?

The vulnerability in the CLI of Cisco StarOS OS for Cisco ASR 5000 Series Aggregation Services Routers enables a local attacker with authenticated access to overwrite system files in flash memory by injecting specific command arguments.

The Impact of CVE-2018-0122

Local attackers with authenticated access can manipulate system files in flash memory
Lack of proper validation of user-supplied input leads to the vulnerability
Successful exploitation allows overwriting or modification of files in the flash memory

Technical Details of CVE-2018-0122

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability arises from insufficient validation of user-supplied input in the CLI of Cisco StarOS OS, allowing attackers to inject crafted command arguments to overwrite or modify system files in flash memory.

Affected Systems and Versions

Product: Cisco StarOS for Cisco ASR 5000 Series Aggregation Services Routers
Version: Cisco StarOS for Cisco ASR 5000 Series Aggregation Services Routers

Exploitation Mechanism

Attackers need authenticated access to the system
Injection of specific command arguments into a vulnerable CLI command
Requires valid administrator credentials for the affected system

Mitigation and Prevention

Protecting systems from CVE-2018-0122 is crucial to prevent unauthorized access and data manipulation.

Immediate Steps to Take

Apply security patches provided by Cisco
Monitor system logs for any suspicious activities
Restrict access to the CLI to authorized personnel only

Long-Term Security Practices

Regularly update and patch the system to address vulnerabilities
Implement strong authentication mechanisms to prevent unauthorized access

Patching and Updates

Cisco has released patches to address the vulnerability
Regularly check for updates and apply them promptly to ensure system security