CVE-2019-13129 : Exploit Details and Defense Strategies
Learn about CVE-2019-13129 affecting Motorola CX2L MWR04L 1.01 router, leading to stack consumption via TCP port 8010 and UDP port 8080. Find mitigation steps and long-term security practices.
The Motorola CX2L MWR04L 1.01 router is affected by a stack consumption vulnerability due to incorrect handling of snprintf and length, leading to infinite recursion when accessed through specific ports.
Understanding CVE-2019-13129
This CVE involves a critical vulnerability in the Motorola router CX2L MWR04L 1.01, impacting its stack consumption when accessed through TCP port 8010 and UDP port 8080.
What is CVE-2019-13129?
The vulnerability in the Motorola router CX2L MWR04L 1.01 allows for stack consumption (infinite recursion) in scopd via TCP port 8010 and UDP port 8080 due to incorrect use of snprintf and inappropriate length handling.
The Impact of CVE-2019-13129
The vulnerability can be exploited by attackers to potentially cause a denial of service (DoS) condition on the affected router, disrupting network services and availability.
Technical Details of CVE-2019-13129
The following technical details provide insight into the vulnerability and its implications.
Vulnerability Description
The issue arises from the incorrect use of snprintf and inadequate handling of length in the scopd service of the Motorola CX2L MWR04L 1.01 router.
Affected Systems and Versions
- Product: Motorola CX2L MWR04L 1.01
- Vendor: Motorola
- Versions: Not specified
Exploitation Mechanism
- Attackers can trigger the vulnerability by accessing the router through TCP port 8010 and UDP port 8080, causing stack consumption and potential service disruption.
Mitigation and Prevention
Protecting systems from CVE-2019-13129 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Disable access to TCP port 8010 and UDP port 8080 if not essential for operations.
- Monitor network traffic for any suspicious activity targeting these ports.
- Implement firewall rules to restrict unauthorized access.
Long-Term Security Practices
- Regularly update router firmware to patch known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential weaknesses.
- Educate network administrators on secure coding practices and vulnerability management.
Patching and Updates
- Apply patches provided by Motorola to address the stack consumption vulnerability in the CX2L MWR04L 1.01 router.