CVE-2017-4926 Explained : Impact and Mitigation
Learn about CVE-2017-4926 affecting VMware vCenter Server versions prior to 6.5 U1. Understand the impact, technical details, and mitigation steps for this stored cross-site scripting vulnerability.
CVE-2017-4926 was published on September 14, 2017, and affects VMware vCenter Server versions prior to 6.5 U1. The vulnerability allows attackers to execute stored cross-site scripting (XSS) attacks by injecting malicious scripts.
Understanding CVE-2017-4926
This CVE identifies a security flaw in VMware vCenter Server that enables stored XSS attacks, potentially leading to unauthorized script execution.
What is CVE-2017-4926?
CVE-2017-4926 is a vulnerability in VMware vCenter Server versions before 6.5 U1 that permits attackers with user privileges to inject harmful scripts, which are executed when other users access the affected page.
The Impact of CVE-2017-4926
The vulnerability in VMware vCenter Server could result in stored cross-site scripting attacks, allowing malicious actors to execute scripts within the context of the user's session, potentially leading to unauthorized actions.
Technical Details of CVE-2017-4926
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
VMware vCenter Server (6.5 prior to 6.5 U1) contains a vulnerability that enables stored cross-site scripting (XSS) attacks. Attackers can inject malicious scripts to be executed when other users visit the compromised page.
Affected Systems and Versions
- Product: VMware vCenter Server
- Vendor: VMware
- Vulnerable Versions: 6.5 prior to 6.5 U1
Exploitation Mechanism
The vulnerability allows attackers with user privileges to inject harmful JavaScript code, which is executed when other VMware vCenter Server users access the compromised page.
Mitigation and Prevention
Protecting systems from CVE-2017-4926 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by VMware promptly.
- Monitor and restrict user privileges to minimize the risk of unauthorized script injections.
Long-Term Security Practices
- Regularly update VMware vCenter Server to the latest secure versions.
- Educate users on safe browsing practices and the risks associated with executing scripts from untrusted sources.
Patching and Updates
Ensure that VMware vCenter Server is regularly updated with the latest security patches to mitigate the risk of stored XSS attacks.