CVE-2019-12799 : Exploit Details and Defense Strategies
Learn about CVE-2019-12799 affecting Shopware versions up to 5.6.x, allowing remote code execution via a PHP object instantiation flaw. Find mitigation steps and long-term security practices here.
Shopware versions up to 5.6.x are susceptible to a PHP object instantiation flaw in the createInstanceFromNamedArguments function, allowing attackers to execute remote code by exploiting a deserialization vulnerability.
Understanding CVE-2019-12799
This CVE highlights a security issue in Shopware that enables remote code execution through a deserialization vulnerability.
What is CVE-2019-12799?
The vulnerability in createInstanceFromNamedArguments in Shopware versions up to 5.6.x allows attackers to trigger a PHP object instantiation flaw via a manipulated web request, leading to arbitrary deserialization and potential remote code execution.
The Impact of CVE-2019-12799
- CVSS Base Score: 6.5 (Medium Severity)
- Attack Vector: Network
- Confidentiality Impact: High
- Privileges Required: Low
- User Interaction: None
- This vulnerability acts as a bypass for the CVE-2017-18357 whitelist patch.
Technical Details of CVE-2019-12799
Shopware's vulnerability to PHP object instantiation flaw and remote code execution.
Vulnerability Description
The flaw in createInstanceFromNamedArguments can be exploited to achieve remote code execution by leveraging a deserialization vulnerability.
Affected Systems and Versions
- Shopware versions up to 5.6.x
Exploitation Mechanism
- Attackers can exploit a manipulated web request to trigger the PHP object instantiation flaw.
Mitigation and Prevention
Steps to address and prevent the CVE-2019-12799 vulnerability.
Immediate Steps to Take
- Apply security patches provided by Shopware promptly.
- Monitor for any unusual activities on the system.
- Implement network security measures to detect and block malicious traffic.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Conduct security audits and penetration testing to identify and address weaknesses.
- Educate users and administrators on secure coding practices and threat awareness.
Patching and Updates
- Stay informed about security updates and patches released by Shopware.
- Ensure timely application of patches to protect systems from known vulnerabilities.