CVE-2019-3795 : What You Need to Know
Learn about CVE-2019-3795, a security vulnerability in Spring Security versions 4.2.x, 5.0.x, and 5.1.x. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Versions of Spring Security, specifically 4.2.x before 4.2.12, 5.0.x before 5.0.12, and 5.1.x before 5.1.5, have a security vulnerability related to the use of SecureRandomFactoryBean#setSeed. This vulnerability arises due to insecure randomness and can be exploited if an application provides a seed and allows the resulting random material to be accessed and examined by an attacker. To mitigate this vulnerability, it is recommended to update to the patched versions.
Understanding CVE-2019-3795
This CVE involves an insecure randomness vulnerability in Spring Security versions.
What is CVE-2019-3795?
CVE-2019-3795 is a security vulnerability in Spring Security versions that can lead to insecure randomness, potentially allowing attackers to access and analyze random material generated by the application.
The Impact of CVE-2019-3795
The vulnerability has a low base severity score of 3.8 but can have a high impact on integrity if exploited. Attackers with high privileges can take advantage of this vulnerability, requiring user interaction for exploitation.
Technical Details of CVE-2019-3795
This section covers the technical aspects of the CVE.
Vulnerability Description
The vulnerability is related to the insecure randomness in Spring Security versions, making the random material accessible to attackers.
Affected Systems and Versions
- Spring Security 4.2.x before 4.2.12
- Spring Security 5.0.x before 5.0.12
- Spring Security 5.1.x before 5.1.5
Exploitation Mechanism
The vulnerability can be exploited if an application provides a seed and allows the resulting random material to be accessed and examined by an attacker.
Mitigation and Prevention
Protective measures to address CVE-2019-3795.
Immediate Steps to Take
- Update to the patched versions of Spring Security (4.2.12, 5.0.12, 5.1.5)
- Review and restrict access to random material in applications
Long-Term Security Practices
- Implement secure randomization practices in application development
- Regularly monitor and update security configurations
Patching and Updates
- Apply security patches provided by Spring to address the vulnerability