CVE-2017-6728 : Security Advisory and Response

Cisco IOS XR Software Incorrect Permissions Privilege Escalation Vulnerability

Understanding CVE-2017-6728

A vulnerability in Cisco IOS XR Software allows a local attacker to execute arbitrary code at the root privilege level.

What is CVE-2017-6728?

The Incorrect Permissions in the CLI of Cisco IOS XR Software can be exploited by a local attacker authenticated to execute arbitrary code at the root privilege level on an affected system.

The Impact of CVE-2017-6728

An authenticated local attacker can execute arbitrary code at the root privilege level.
Vulnerability identified in Cisco IOS XR Software.

Technical Details of CVE-2017-6728

Vulnerability Description

The vulnerability in the CLI of Cisco IOS XR Software enables a local attacker to execute arbitrary code at the root privilege level due to Incorrect Permissions.

Affected Systems and Versions

Affected Product: Cisco IOS XR
Affected Versions: 6.2.1.BASE

Exploitation Mechanism

Local attacker with authentication can exploit the vulnerability to execute arbitrary code at the root privilege level.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary patches provided by Cisco.
Monitor Cisco's security advisories for updates.

Long-Term Security Practices

Regularly update and patch Cisco IOS XR Software.
Implement least privilege access controls.
Conduct security training for system administrators.

Patching and Updates

Update to fixed releases: 6.3.1.15i.BASE, 6.2.3.1i.BASE, 6.2.2.15i.BASE, 6.1.4.10i.BASE.