CVE-2019-15248 : Security Advisory and Response

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

Understanding CVE-2019-15248

The vulnerability in Cisco SPA100 Series Analog Telephone Adapters could be exploited by an authenticated attacker to execute arbitrary code with elevated privileges.

What is CVE-2019-15248?

The weaknesses in the Cisco SPA100 Series Analog Telephone Adapters allow an attacker in close proximity to execute unauthorized code with higher privileges.
These vulnerabilities stem from improper validation of user input in the web-based management interface.
By gaining access to the interface and sending manipulated requests, an attacker could exploit these weaknesses.
Successful exploitation could grant the attacker the ability to execute unauthorized code with higher privileges.

The Impact of CVE-2019-15248

CVSS Score: 8.0 (High)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-15248

The technical details of the vulnerability in Cisco SPA100 Series Analog Telephone Adapters are as follows:

Vulnerability Description

The vulnerabilities allow an authenticated attacker to execute arbitrary code with elevated privileges.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can exploit these vulnerabilities by sending crafted requests to an affected device after authenticating to the web-based management interface.

Mitigation and Prevention

Steps to mitigate and prevent the exploitation of CVE-2019-15248:

Immediate Steps to Take

Disable the web-based management interface if not required.
Implement network segmentation to limit access to the affected devices.
Regularly monitor for unauthorized access or unusual activities.

Long-Term Security Practices

Keep systems up to date with the latest security patches.
Conduct regular security training for users to raise awareness of potential threats.

Patching and Updates

Apply patches provided by Cisco to address the vulnerabilities in the SPA100 Series Analog Telephone Adapters.