CVE-2019-11849 : Exploit Details and Defense Strategies

ALEOS versions earlier than 4.11.0 contain a stack overflow vulnerability within the AT command APIs, potentially leading to code execution.

Understanding CVE-2019-11849

This CVE involves a stack overflow vulnerability in ALEOS AT command APIs.

What is CVE-2019-11849?

It is a vulnerability in ALEOS versions prior to 4.11.0 that could allow attackers to execute malicious code.

The Impact of CVE-2019-11849

CVSS Base Score: 6.3 (Medium Severity)
Attack Vector: Local
Attack Complexity: High
Privileges Required: High
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-11849

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability lies in the AT command APIs of ALEOS versions before 4.11.0, potentially enabling code execution.

Affected Systems and Versions

Affected Product: Not applicable
Affected Vendor: Not applicable
Affected Versions: All versions before 4.11.0

Exploitation Mechanism

The vulnerability can be exploited locally, requiring high privileges and user interaction.

Mitigation and Prevention

To address CVE-2019-11849, follow these mitigation strategies:

Immediate Steps to Take

Update ALEOS to version 4.11.0 or later to eliminate the vulnerability.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update software and firmware to patch known vulnerabilities.
Implement the principle of least privilege to limit potential damage from attacks.
Educate users on safe computing practices to prevent exploitation.

Patching and Updates

Stay informed about security bulletins and patches released by Sierra Wireless.