CVE-2017-16539 : Exploit Details and Defense Strategies
Discover the impact of CVE-2017-16539 on Docker Moby version 17.03.2-ce. Learn about the vulnerability in the DefaultLinuxSpec function that allows attackers to exploit Docker container access, potentially causing data loss on older Linux kernels.
Docker Moby version 17.03.2-ce is vulnerable due to a flaw in the DefaultLinuxSpec function, allowing attackers to exploit Docker container access and potentially cause data loss on older Linux kernels by injecting a specific command. This vulnerability is known as SCSI MICDROP.
Understanding CVE-2017-16539
This CVE involves a vulnerability in Docker Moby version 17.03.2-ce that can be exploited to manipulate /proc/scsi pathnames, leading to potential data loss on certain Linux kernels.
What is CVE-2017-16539?
The vulnerability in the DefaultLinuxSpec function of Docker Moby version 17.03.2-ce allows attackers to inject commands into the /proc/scsi/scsi file, potentially causing data loss on older Linux kernels.
The Impact of CVE-2017-16539
This vulnerability enables attackers to exploit Docker container access, potentially leading to data loss on systems with older Linux kernels by injecting a specific command into the /proc/scsi/scsi file.
Technical Details of CVE-2017-16539
Dive deeper into the technical aspects of this vulnerability.
Vulnerability Description
The DefaultLinuxSpec function in Docker Moby through 17.03.2-ce fails to block /proc/scsi pathnames, allowing attackers to trigger data loss on certain older Linux kernels by writing a specific line to /proc/scsi/scsi, also known as SCSI MICDROP.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting a "scsi remove-single-device" command into the /proc/scsi/scsi file, potentially causing data loss on systems with older Linux kernels.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2017-16539.
Immediate Steps to Take
- Update Docker Moby to a patched version that addresses the vulnerability.
- Monitor system logs for any suspicious activities related to /proc/scsi pathnames.
Long-Term Security Practices
- Regularly update Docker and other containerization software to patch known vulnerabilities.
- Implement strict access controls and monitoring mechanisms to detect unauthorized access attempts.
Patching and Updates
Ensure timely patching of Docker Moby to the latest version that includes fixes for the vulnerability.