CVE-2019-15244 : Exploit Details and Defense Strategies

Cisco SPA100 Series Analog Telephone Adapters have multiple vulnerabilities that could allow attackers to execute unauthorized code with elevated privileges.

Understanding CVE-2019-15244

This CVE involves security weaknesses in Cisco SPA100 Series Analog Telephone Adapters that could lead to remote code execution.

What is CVE-2019-15244?

The vulnerability allows nearby attackers who have successfully authenticated to execute unauthorized code with higher privileges due to inadequate user input validation in the web-based management interface.

The Impact of CVE-2019-15244

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

Technical Details of CVE-2019-15244

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerabilities arise from the failure to adequately validate user input within the web-based management interface.

Affected Systems and Versions

Product: Cisco SPA112 2-Port Phone Adapter
Vendor: Cisco
Version: Unspecified

Exploitation Mechanism

To exploit these weaknesses, an attacker needs to authenticate into the interface and send specifically crafted requests to a vulnerable device.

Mitigation and Prevention

Steps to address and prevent exploitation of the vulnerability.

Immediate Steps to Take

Disable the web-based management interface if not needed.
Apply vendor-supplied patches or updates.
Monitor network traffic for signs of exploitation.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Check for and apply any security patches released by Cisco.