CVE-2018-0183 : Security Advisory and Response

Cisco IOS XE Software CLI parser vulnerability allows local attackers to gain root access to affected devices.

Understanding CVE-2018-0183

A vulnerability in the CLI parser of Cisco IOS XE Software could be exploited by authenticated local attackers to access the Linux shell and execute commands with root privileges.

What is CVE-2018-0183?

The vulnerability in Cisco IOS XE Software's CLI parser allows local attackers to access the underlying Linux shell of affected devices and execute arbitrary commands with root privileges.

The Impact of CVE-2018-0183

Local attackers with authenticated access can gain root privileges on affected devices
Attackers can execute arbitrary commands on the device
Exploitation could lead to unauthorized access to internal data structures

Technical Details of CVE-2018-0183

A detailed look at the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from improper sanitization of command arguments
Allows attackers to bypass security measures and gain root access

Affected Systems and Versions

Product: Cisco IOS XE
Version: Cisco IOS XE

Exploitation Mechanism

Attackers with privileged EXEC mode access can exploit crafted CLI commands
Successful exploitation grants access to the Linux shell with root privileges

Mitigation and Prevention

Steps to mitigate the vulnerability and prevent exploitation.

Immediate Steps to Take

Apply patches and updates from Cisco
Restrict access to privileged EXEC mode
Monitor and restrict CLI commands

Long-Term Security Practices

Regular security training for users
Implement least privilege access controls

Patching and Updates

Regularly check for security advisories and apply patches promptly