CVE-2019-1829 : Exploit Details and Defense Strategies

A weakness has been discovered in the Command Line Interface (CLI) of Cisco Aironet Series Access Points (APs) that could allow unauthorized access to the Linux operating system.

Understanding CVE-2019-1829

This CVE involves a vulnerability in Cisco Aironet Access Point Software that could be exploited by a local attacker with authenticated access to gain unauthorized entry into the Linux OS.

What is CVE-2019-1829?

The vulnerability stems from inadequate validation of user input for specific CLI commands, enabling an attacker to bypass authentication and access the underlying OS.

The Impact of CVE-2019-1829

CVSS Score: 6.7 (Medium Severity)
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-1829

The technical details of the vulnerability are as follows:

Vulnerability Description

The vulnerability allows a local attacker with authenticated access to execute unauthorized commands on the Linux OS.

Affected Systems and Versions

Product: Cisco Aironet Access Point Software
Vendor: Cisco
Affected Version: 8.5(131.0)

Exploitation Mechanism

Attacker requires valid administrative device credentials
Inadequate validation of user input for specific CLI commands
Crafted input for a CLI command can lead to unauthorized access

Mitigation and Prevention

To address CVE-2019-1829, consider the following steps:

Immediate Steps to Take

Apply vendor-provided patches or updates
Monitor network for any unauthorized access

Long-Term Security Practices

Implement strong password policies
Regularly review and update access controls

Patching and Updates

Stay informed about security advisories from Cisco
Apply patches promptly to mitigate risks