CVE-2019-12143 : Security Advisory and Response
Learn about CVE-2019-12143, a Directory Traversal vulnerability in SSHServerAPI.dll within Progress Ipswitch WS_FTP Server 2018 versions prior to 8.6.1, enabling unauthorized disclosure of usernames and filenames. Find mitigation steps and preventive measures.
A vulnerability related to Directory Traversal has been identified in SSHServerAPI.dll within Progress Ipswitch WS_FTP Server 2018 versions prior to 8.6.1. By employing specific patterns through the SCP protocol, an unauthorized individual can disclose both WS_FTP usernames and filenames.
Understanding CVE-2019-12143
This CVE involves a Directory Traversal issue in Progress Ipswitch WS_FTP Server 2018 before version 8.6.1, allowing unauthorized disclosure of usernames and filenames.
What is CVE-2019-12143?
CVE-2019-12143 is a vulnerability in SSHServerAPI.dll in Progress Ipswitch WS_FTP Server 2018, enabling an attacker to reveal sensitive information through the SCP protocol.
The Impact of CVE-2019-12143
The vulnerability can lead to unauthorized disclosure of WS_FTP usernames and filenames, potentially compromising user privacy and system security.
Technical Details of CVE-2019-12143
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in SSHServerAPI.dll allows attackers to exploit specific patterns via the SCP protocol to access and disclose WS_FTP usernames and filenames.
Affected Systems and Versions
- Product: Progress Ipswitch WS_FTP Server 2018
- Versions Affected: Before 8.6.1
Exploitation Mechanism
Attackers can leverage the SCP protocol by supplying crafted strings with special patterns to reveal sensitive information.
Mitigation and Prevention
Protecting systems from CVE-2019-12143 is crucial to maintaining security.
Immediate Steps to Take
- Update Progress Ipswitch WS_FTP Server to version 8.6.1 or later.
- Monitor system logs for any suspicious activities related to directory traversal.
- Implement strong access controls to restrict unauthorized access.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify vulnerabilities.
- Educate users on safe SCP protocol usage and potential risks.
Patching and Updates
- Apply security patches promptly to address known vulnerabilities and enhance system security.