CVE-2020-37195

7.5

Nsasoft · BlueAuditor

Nsasoft BlueAuditor 1.7.2.0 is vulnerable to a denial of service attack via a buffer overflow in the registration name field, allowing unauthorized users to crash the application.

Executive summary

A buffer overflow vulnerability in Nsasoft BlueAuditor 1.7.2.0 allows an attacker to cause an application crash, resulting in a denial of service condition.

Vulnerability

The application contains a buffer overflow (CWE-120) within the registration name input field. By supplying a specially crafted payload of 1000 characters, an attacker can trigger an unhandled memory exception, causing the software to terminate unexpectedly.

Business impact

Successful exploitation results in a denial of service, rendering the BlueAuditor application unavailable for its intended auditing or security functions. While the CVSS score of 7.5 indicates a high severity for the availability impact, the primary business risk involves the disruption of security monitoring workflows that rely on this software. Repeated crashes may lead to operational downtime and require manual intervention to restore service.

Remediation

Immediate Action: As no official patch is currently available from the vendor, users should restrict access to the application registration interface and avoid entering untrusted or excessively long strings into the name field.

Proactive Monitoring: Security teams should monitor system logs for frequent application crashes or unexpected service restarts associated with the BlueAuditor process.

Compensating Controls: Implement host-based access controls to ensure only authorized administrative personnel can interact with the software registration module, effectively limiting the attack surface.

Exploitation status

Public Exploit Available: Yes, a proof-of-concept exploit is available via ExploitDB (EDB-ID: 47857).

Analyst recommendation

Given the availability of a public proof-of-concept and the ease of exploitation, organizations currently using Nsasoft BlueAuditor 1.7.2.0 must prioritize restricting access to the application. Because a formal patch is not confirmed, administrators should evaluate the necessity of the software and consider migrating to alternative solutions if the vendor does not provide a resolution for this buffer overflow flaw.

Sources

Originally found and disclosed by Ismail Tasdelen, per the CVE Program record.