CVE-2021-39152 : Vulnerability Insights and Analysis
Learn about CVE-2021-39152, a high-severity vulnerability in XStream. Understand the impact, affected versions, and mitigation steps to secure your systems.
XStream, a library to serialize objects to XML and back, has a vulnerability that could allow a remote attacker to access internal resources. Here's what you need to know about this CVE.
Understanding CVE-2021-39152
This section provides an in-depth analysis of the vulnerability in XStream.
What is CVE-2021-39152?
XStream, with affected versions below 1.4.18, may allow attackers to manipulate input streams to access restricted internal data.
The Impact of CVE-2021-39152
The CVSS score for this vulnerability is 8.5 (High), with a significant impact on confidentiality, integrity, and availability. Attack vector is through the network, with high attack complexity.
Technical Details of CVE-2021-39152
Delve into the technical aspects of the vulnerability in this section.
Vulnerability Description
Users of XStream versions below 1.4.18 are exposed to a Server-Side Request Forgery (SSRF) vulnerability which can be exploited to access sensitive data.
Affected Systems and Versions
- Product: XStream
- Vendor: X-Stream
- Versions Affected: < 1.4.18
Exploitation Mechanism
The vulnerability occurs due to improper processing of input streams in XStream, enabling attackers to manipulate data requests.
Mitigation and Prevention
Learn how to mitigate the risks and prevent exploitation of this vulnerability.
Immediate Steps to Take
- Upgrade XStream to version 1.4.18 or higher immediately.
- Implement a whitelist-based security framework to restrict data access.
Long-Term Security Practices
- Regularly update XStream and other dependencies to the latest versions.
- Conduct security audits to identify and address vulnerabilities proactively.
Patching and Updates
Stay informed about security updates and patches released by X-Stream to address CVE-2021-39152.