CVE-2018-17867 : Vulnerability Insights and Analysis
Learn about CVE-2018-17867, a vulnerability in DASAN H660GW devices allowing remote code execution. Find out how to mitigate the risk and apply necessary patches.
A vulnerability in DASAN H660GW devices allows remote attackers to execute arbitrary code through the Port Forwarding feature.
Understanding CVE-2018-17867
What is CVE-2018-17867?
The vulnerability in DASAN H660GW devices enables arbitrary code execution by exploiting shell metacharacters in the cgi-bin/adv_nat_virsvr.asp Addr parameter.
The Impact of CVE-2018-17867
The vulnerability allows remote attackers to execute arbitrary code on affected devices, posing a significant security risk.
Technical Details of CVE-2018-17867
Vulnerability Description
The Port Forwarding functionality in DASAN H660GW devices is susceptible to remote code execution via shell metacharacters in the Addr parameter.
Affected Systems and Versions
- Product: DASAN H660GW
- Vendor: DASAN
- Versions: All versions
Exploitation Mechanism
The vulnerability can be exploited by manipulating the Local IP Address field in the cgi-bin/adv_nat_virsvr.asp script.
Mitigation and Prevention
Immediate Steps to Take
- Disable Port Forwarding feature if not essential
- Implement network segmentation to limit exposure
- Monitor network traffic for suspicious activities
Long-Term Security Practices
- Regularly update firmware and security patches
- Conduct security audits and penetration testing
Patching and Updates
Apply patches and updates provided by DASAN to address the vulnerability.