CVE-2019-7231 Explained : Impact and Mitigation
Learn about CVE-2019-7231, a buffer overflow vulnerability in the ABB IDAL FTP server that allows an attacker to terminate the server process by sending a specific FTP command string. Find mitigation steps and prevention measures here.
A buffer overflow vulnerability in the ABB IDAL FTP server allows an authenticated attacker to terminate the server by sending a specific FTP command string.
Understanding CVE-2019-7231
This CVE involves a buffer overflow issue in the ABB IDAL FTP server, triggered by a lengthy string sent by an authenticated attacker.
What is CVE-2019-7231?
The vulnerability arises when an authenticated attacker sends a lengthy string to the ABB IDAL FTP server, leading to a buffer overflow that causes the server process to terminate.
The Impact of CVE-2019-7231
The buffer overflow vulnerability can be exploited by sending a FTP command string of at least 472 bytes, resulting in an exception that forces the server to shut down.
Technical Details of CVE-2019-7231
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The ABB IDAL FTP server is susceptible to a buffer overflow when a specific FTP command string is sent by an authenticated attacker. Although the overflow is managed, it ultimately leads to the termination of the server process.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
- An authenticated attacker sends a FTP command string of at least 472 bytes
- The buffer overflows, causing an exception that terminates the server
Mitigation and Prevention
Protecting systems from CVE-2019-7231 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor patches or updates promptly
- Monitor network traffic for any suspicious activities
- Restrict access to the FTP server to authorized users only
Long-Term Security Practices
- Regularly update and patch all software and systems
- Conduct security training for employees to recognize and report potential threats
- Implement network segmentation to limit the impact of potential attacks
Patching and Updates
- Check for patches or updates provided by ABB for the IDAL FTP server
- Apply the latest security fixes to mitigate the buffer overflow vulnerability