CVE-2021-47893

7.5

AgataSoft · PingMaster Pro

AgataSoft PingMaster Pro 2.1 is vulnerable to a denial of service attack via a buffer overflow in the Trace Route feature, allowing local attackers to crash the application.

Executive summary

A buffer overflow vulnerability in AgataSoft PingMaster Pro 2.1 allows an attacker to cause an application crash and potential system instability by injecting a malicious payload into the Trace Route host name field.

Vulnerability

The application fails to properly sanitize user input in the Trace Route feature, leading to a buffer overflow (CWE-770). This vulnerability can be triggered by an attacker providing a 10,000 character string in the host name field, which results in the application crashing.

Business impact

The exploitation of this vulnerability results in a denial of service, rendering the PingMaster Pro application unavailable. While the CVSS score of 7.5 indicates a high severity, the primary impact is limited to system instability and operational disruption for the affected workstation. Repeated crashes may lead to significant workflow interruptions for teams relying on the software for network diagnostics.

Remediation

Immediate Action: As no official patch is currently available, users should restrict access to the application to trusted personnel only and avoid entering untrusted host names into the Trace Route feature.

Proactive Monitoring: Security teams should monitor system logs for frequent application crashes or unexpected service terminations associated with PingMaster Pro.

Compensating Controls: Implement endpoint security policies that restrict the execution of unauthorized or vulnerable software and utilize host based intrusion detection to monitor for buffer overflow attempts.

Exploitation status

Public Exploit Available: Yes, a proof of concept script is available via the Exploit Database (EDB-ID: 49567).

Analyst recommendation

Given the availability of a public proof of concept and the potential for service disruption, organizations should treat this vulnerability with moderate urgency. Until a vendor update is released, users must exercise caution when using the Trace Route functionality and consider alternative network diagnostic tools if stability becomes a concern.

Sources

Originally found and disclosed by Ismael Nava, per the CVE Program record.