CVE-2019-18991 Explained : Impact and Mitigation

A vulnerability affecting Atheros AR9132, AR9283, and AR9285 devices allows for partial authentication bypass, potentially enabling unauthorized access to data.

Understanding CVE-2019-18991

This CVE involves a security flaw in specific Atheros devices that could lead to unauthorized access to information.

What is CVE-2019-18991?

The vulnerability allows the transmission of unencrypted data frames to a WPA2-protected WLAN router, potentially enabling attackers to intercept and modify data.

The Impact of CVE-2019-18991

If exploited successfully, attackers could gain access to sensitive information or manipulate data within the network.

Technical Details of CVE-2019-18991

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in Atheros AR9132, AR9283, and AR9285 devices allows for a partial authentication bypass, enabling the transmission of unencrypted data frames to a protected network.

Affected Systems and Versions

Atheros AR9132 3.60(AMX.8)
Atheros AR9283 1.85
Atheros AR9285 1.0.0.12NA

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Confidentiality Impact: Low
Integrity Impact: Low
Privileges Required: None
Scope: Changed
User Interaction: None

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Monitor network traffic for any suspicious activities
Implement encryption protocols to secure data transmission
Update firmware to the latest version

Long-Term Security Practices

Regularly conduct security audits and assessments
Train employees on cybersecurity best practices

Patching and Updates

Apply patches provided by the device manufacturer