CVE-2019-16758 : Security Advisory and Response
Learn about CVE-2019-16758, a directory traversal exploit in Lexmark Services Monitor 2.27.4.0.39 allowing remote attackers to access local files. Find mitigation steps and preventive measures here.
A directory traversal exploit in Lexmark Services Monitor 2.27.4.0.39 allows remote attackers to access local files on the host operating system.
Understanding CVE-2019-16758
This CVE identifies a vulnerability in Lexmark Services Monitor 2.27.4.0.39 that enables unauthorized access to local files through a specific technique.
What is CVE-2019-16758?
The vulnerability in Lexmark Services Monitor 2.27.4.0.39 permits attackers to retrieve sensitive files from the host system remotely using a directory traversal method.
The Impact of CVE-2019-16758
Exploitation of this vulnerability can lead to unauthorized access to confidential information stored on the affected system, compromising data integrity and confidentiality.
Technical Details of CVE-2019-16758
This section provides detailed technical insights into the CVE-2019-16758 vulnerability.
Vulnerability Description
The exploit in Lexmark Services Monitor 2.27.4.0.39 running on TCP port 2070 allows remote attackers to perform directory traversal using specific sequences (/../../../ or ..%2F..%2F..%2F) to access local files.
Affected Systems and Versions
- Product: Lexmark Services Monitor 2.27.4.0.39
- Vendor: Lexmark
- Version: 2.27.4.0.39
Exploitation Mechanism
The vulnerability can be exploited by sending crafted requests containing directory traversal sequences to the target system, enabling unauthorized file access.
Mitigation and Prevention
Protecting systems from CVE-2019-16758 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Disable or restrict access to the affected service or port (TCP port 2070) if not essential.
- Implement network-level security controls to filter out malicious requests attempting directory traversal.
Long-Term Security Practices
- Regularly monitor and update software to patch known vulnerabilities promptly.
- Conduct security assessments and penetration testing to identify and address potential weaknesses in the system.
Patching and Updates
- Apply patches or updates provided by Lexmark to address the vulnerability in Lexmark Services Monitor 2.27.4.0.39.