CVE-2019-9874 : Exploit Details and Defense Strategies
Learn about CVE-2019-9874, a vulnerability in Sitecore CMS and Sitecore XP versions allowing unauthenticated attackers to execute arbitrary code. Find mitigation steps and prevention measures here.
The Sitecore.Security.AntiCSRF module in Sitecore CMS and Sitecore XP versions is vulnerable to deserialization of untrusted data, allowing attackers to execute arbitrary code.
Understanding CVE-2019-9874
This CVE involves a security vulnerability in the Sitecore.Security.AntiCSRF module that can be exploited by unauthenticated attackers.
What is CVE-2019-9874?
The vulnerability in the Sitecore.Security.AntiCSRF module allows attackers to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.
The Impact of CVE-2019-9874
Attackers who are not authenticated can exploit this vulnerability to execute arbitrary code, posing a significant security risk to affected systems.
Technical Details of CVE-2019-9874
The technical aspects of the vulnerability are crucial to understanding its implications.
Vulnerability Description
The vulnerability lies in the deserialization of untrusted data in the Sitecore.Security.AntiCSRF module, enabling attackers to execute arbitrary code.
Affected Systems and Versions
- Sitecore CMS versions 7.0 to 7.2
- Sitecore XP versions 7.5 to 8.2
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a serialized .NET object as the value of the HTTP POST parameter __CSRFTOKEN.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are essential to mitigate the risks associated with CVE-2019-9874.
Immediate Steps to Take
- Apply security patches provided by Sitecore promptly.
- Monitor network traffic for any suspicious activities.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch all software and applications.
- Conduct security audits and penetration testing to identify vulnerabilities.
- Educate users and administrators about secure coding practices.
Patching and Updates
Ensure that all affected systems are updated with the latest patches and security fixes to prevent exploitation of this vulnerability.