CVE-2020-28339 : Exploit Details and Defense Strategies
Learn about CVE-2020-28339, a high-severity vulnerability in the usc-e-shop plugin for WordPress allowing Object Injection. Find mitigation steps and long-term security practices here.
The usc-e-shop (aka Collne Welcart e-Commerce) plugin before 1.9.36 for WordPress is vulnerable to Object Injection due to usces_unserialize, potentially leading to a high impact on confidentiality, integrity, and availability.
Understanding CVE-2020-28339
This CVE involves a vulnerability in the usc-e-shop plugin for WordPress that allows Object Injection, posing a significant risk to affected systems.
What is CVE-2020-28339?
The usc-e-shop plugin before version 1.9.36 for WordPress is susceptible to Object Injection through usces_unserialize, lacking a complete POP chain.
The Impact of CVE-2020-28339
The vulnerability has a CVSS base score of 7.5, with high severity due to its potential impact on confidentiality, integrity, and availability. The attack complexity is high, and user interaction is not required.
Technical Details of CVE-2020-28339
This section delves into the specific technical aspects of the CVE.
Vulnerability Description
The vulnerability in the usc-e-shop plugin allows Object Injection, which can be exploited by attackers to compromise the affected systems.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
The vulnerability can be exploited remotely with a high attack complexity, impacting confidentiality, integrity, and availability of the system.
Mitigation and Prevention
Protecting systems from CVE-2020-28339 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the usc-e-shop plugin to version 1.9.36 or newer to mitigate the vulnerability.
- Monitor for any suspicious activities on the WordPress site.
Long-Term Security Practices
- Regularly update all plugins and themes on WordPress to address potential security flaws.
- Implement strong access controls and regularly review user privileges.
Patching and Updates
Ensure that all software components, including plugins and WordPress core, are promptly updated to the latest versions to prevent exploitation of known vulnerabilities.