CVE-2019-25659: ASPRunner Professional Buffer Overflow

CVE-2019-25659 Overview

CVE-2019-25659 is a local buffer overflow vulnerability affecting ASPRunner Professional version 6.0.766. This vulnerability allows attackers to cause a denial of service condition by supplying an excessively long project name during project creation. Specifically, pasting 180 or more characters into the Project name field triggers an application crash due to improper handling of input length boundaries.

Critical Impact

Local attackers can crash the ASPRunner Professional application by exploiting a buffer overflow condition through oversized project name input, resulting in denial of service.

Affected Products

• ASPRunner Professional 6.0.766
• XLineSoft ASPRunner Professional (Windows)

Discovery Timeline

• 2026-04-05 - CVE CVE-2019-25659 published to NVD
• 2026-04-07 - Last updated in NVD database

Technical Details for CVE-2019-25659

Vulnerability Analysis

This vulnerability is classified as CWE-787 (Out-of-bounds Write), which occurs when software writes data past the boundaries of the allocated memory buffer. In ASPRunner Professional 6.0.766, the application fails to properly validate the length of user-supplied input in the Project name field during project creation.

The buffer overflow is triggered when a user inputs 180 or more characters into the Project name field. The application does not implement adequate bounds checking before copying the user input into a fixed-size buffer, causing memory corruption and subsequent application crash. This is a classic example of insufficient input validation leading to denial of service.

Root Cause

The root cause of this vulnerability lies in improper input validation within ASPRunner Professional's project creation functionality. The application allocates a fixed-size buffer for the project name without implementing adequate length checks before writing user-supplied data to this buffer. When input exceeds the expected boundary (180+ characters), the application writes beyond the allocated memory region, corrupting adjacent memory and causing the application to crash.

Attack Vector

This is a local attack vector vulnerability that requires an attacker to have local access to the system where ASPRunner Professional is installed. The exploitation process involves:

1. Opening ASPRunner Professional 6.0.766 and initiating project creation
2. Pasting 180 or more characters into the Project name input field
3. The application attempts to process the oversized input without proper bounds checking
4. Buffer overflow occurs, corrupting memory and crashing the application

The attack does not require authentication or special privileges, and no user interaction beyond the attacker's own actions is needed. However, the impact is limited to denial of service (application crash) without evidence of code execution capability.

Detection Methods for CVE-2019-25659

Indicators of Compromise

• Unexpected crashes of ASPRunner Professional application during project creation
• Application event logs showing crash events related to memory access violations
• Presence of crash dump files indicating buffer overflow patterns

Detection Strategies

• Monitor application crash logs for ASPRunner Professional with memory-related exceptions
• Implement endpoint detection for applications terminating with access violation errors
• Review Windows Event Logs for Application Error events associated with ASPRunner Professional executable

Monitoring Recommendations

• Configure endpoint protection to alert on repeated application crashes
• Monitor process termination events for ASPRunner Professional with abnormal exit codes
• Implement application performance monitoring to detect denial of service patterns

How to Mitigate CVE-2019-25659

Immediate Actions Required

• Restrict access to ASPRunner Professional installations to trusted users only
• Consider upgrading to a newer version of ASPRunner Professional if available from the vendor
• Implement endpoint protection to monitor for suspicious application behavior
• Review the VulnCheck Security Advisory for additional guidance

Patch Information

No vendor patch information is currently available in the CVE data. Users should check the XLineSoft Product Page for any security updates or newer versions that may address this vulnerability. Additional technical details about the vulnerability can be found at Exploit-DB #46293.

Workarounds

• Limit the number of characters that can be pasted into input fields using third-party input validation tools
• Restrict physical and remote access to systems running ASPRunner Professional
• Consider running the application in a sandboxed environment to contain potential crashes
• Implement user training to avoid inputting excessively long project names