CVE-2019-3873 : Security Advisory and Response
Learn about CVE-2019-3873, a vulnerability in the Picketlink component of Jboss Enterprise Application Platform 7.2 that could allow attackers to manipulate the system, potentially leading to cross-site scripting or other attacks. Find out how to mitigate this vulnerability.
A vulnerability in the Picketlink component that ships with Jboss Enterprise Application Platform 7.2 could allow an attacker to manipulate the system, potentially leading to cross-site scripting or other attacks.
Understanding CVE-2019-3873
This CVE involves a weakness in the Picketlink component that could be exploited by sending a URL with an xinclude parameter within SAMLresponse XML.
What is CVE-2019-3873?
The vulnerability in the Picketlink component of Jboss Enterprise Application Platform 7.2 allows attackers to manipulate the system by exploiting an xinclude parameter within SAMLresponse XML.
The Impact of CVE-2019-3873
Exploiting this vulnerability could result in cross-site scripting attacks or enable further malicious activities on the affected system.
Technical Details of CVE-2019-3873
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability allows attackers to send a URL with an xinclude parameter within SAMLresponse XML, enabling system manipulation.
Affected Systems and Versions
- Product: Picketlink
- Vendor: Red Hat
- Versions: as shipped with Jboss Enterprise Application Server 7.2
Exploitation Mechanism
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Changed
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: Low
- Base Score: 6.4 (Medium Severity)
- Vector String: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L
Mitigation and Prevention
Protecting systems from CVE-2019-3873 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Monitor for any unusual activities on the system.
Long-Term Security Practices
- Regularly update and patch software components.
- Implement secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Ensure that the Picketlink component in Jboss Enterprise Application Platform 7.2 is updated with the latest patches to mitigate the vulnerability.