Netsweeper Open Redirect Scanner
Detects 'Open Redirect' vulnerability in Netsweeper affects v. 4.0.9. This scanner identifies possible user redirection to malicious sites and assesses possible unauthorized actions.
Short Info
Level
Medium
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
16 days 10 hours
Scan only one
URL
Toolbox
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Netsweeper is a robust content filtering solution widely used by internet service providers, schools, and businesses to regulate internet content access. By providing critical tools for web filtering, monitoring, and reporting, Netsweeper facilitates a controlled and secure internet experience. It ensures inappropriate content is blocked and internet access is managed according to predefined policies. Its flexibility in providing cloud-based and on-premise solutions makes it suitable for diverse infrastructures. Netsweeper’s integration capabilities with various educational and corporate environments highlight its adaptability. The software supports regulatory compliance and enhances network security, fostering safer online environments.
The Open Redirect vulnerability in Netsweeper 4.0.9 allows attackers to manipulate URL redirections to malicious websites. Open Redirects can be exploited by attackers to phish credentials or conduct malware distribution, affecting user trust and security. An unauthorized redirect can lead users to harmful domains without their knowledge, under the guise of legitimate URLs. Such vulnerabilities suggest security misconfigurations in URL-handling applications. Exploiting these redirects could potentially aid attackers in bypassing protective mechanisms or gaining access to sensitive data inadvertently. It highlights the risk in applications lacking strict URL validation or filtering mechanisms.
Technical analysis shows Netsweeper 4.0.9’s vulnerable point is within the 'bounce.php' endpoint. This endpoint handles URL redirections which can be improperly leveraged for unauthorized purposes. Attackers can inject malicious URLs via the 'url' parameter to redirect users without consent. Given the regex pattern for matching within HTTP header responses, there exists a susceptibility to accommodate undesired redirects. This vulnerability arises from improper validation controls, allowing maliciously crafted URLs to be processed. Targeted exploitation could manipulate the Location HTTP header for unauthorized navigation, risking user data and actions.
The exploitation of this vulnerability could expose users to phishing attacks or unauthorized data access. Successful exploitation permits redirection to phony websites crafted to deceive users into divulging personal information. It may also inadvertently download and execute malicious payloads on a user’s device, leading to potential data breaches. Users could be subjected to unwanted transactions or sessions hijacking if redirected to sites with harmful intent. This issue compromises end-user trust and could lead to financial and reputational damage for organizations utilizing Netsweeper. Additionally, it poses risks of degrading the integrity of network controls.
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