Telerik Reporting is a software platform used for creating and delivering business intelligence and reporting solutions. It is primarily designed for use within Microsoft's ASP.NET environment, specifically for ASP.NET WebForms. The platform provides a variety of toolsets and components for designing, generating, and delivering reports to a wide range of end-users, including web applications, desktop applications, and mobile devices. Using Telerik Reporting, developers can create a wide range of reports and dashboards, including financial reports, sales reports, marketing reports, customer reports, and more.
Unfortunately, even the most advanced software platforms are not immune to vulnerabilities. CVE-2017-9140 is an example of a critical cross-site scripting (XSS) vulnerability that was detected in Telerik.Reporting.WebForms.dll, a component of Telerik Reporting for ASP.NET. This vulnerability allows remote attackers to inject arbitrary web scripts or HTML via the bgColor parameter to Telerik.ReportViewer.axd. The vulnerability was discovered in versions of Telerik Reporting released before R1 2017 SP2 (11.0.17.406).
When exploited, this vulnerability could lead to a variety of malicious outcomes, including data theft, loss of confidential information, website defacing, or hijacking of user accounts. For example, attackers could use the vulnerability to steal session cookies or login credentials, intercept sensitive data transmissions, or execute arbitrary malicious code on the targeted system. In addition, the impact of the vulnerability could be exacerbated if attackers have access to additional vulnerabilities or are able to conduct social engineering attacks to trick users or developers into providing access to sensitive information or systems.
Thanks to the pro features of the s4e.io platform, businesses and developers can easily and quickly learn about vulnerabilities in their digital assets. With the platform's integration with popular vulnerability scanning tools, comprehensive reporting and dashboard features, and proactive alerting and notification capabilities, it helps organizations stay ahead of emerging security threats and mitigate risks proactively. By using the platform, businesses can ensure the safety and security of their data and digital assets and protect themselves against vulnerabilities such as CVE-2017-9140 in Telerik Reporting.
REFERENCES
- http://www.telerik.com/support/whats-new/reporting/release-history/telerik-reporting-r1-2017-sp2
- https://knowledgebase.progress.com/articles/Article/Security-Advisory-for-Resolving-Security-vulnerabilities-September-2018
- https://www.veracode.com/blog/research/anatomy-cross-site-scripting-flaw-telerik-reporting-module
To protect against this vulnerability, developers should consider implementing the following precautions:
- Update to the latest version of Telerik Reporting that includes the patch for CVE-2017-9140
- Use a web application firewall (WAF) to detect and block malicious inputs before they reach application code
- Enable input validation and output encoding to prevent injection attacks and cross-site scripting (XSS) attacks
- Use HTTPS encryption for all web traffic to prevent interception and man-in-the-middle (MitM) attacks
- Perform vulnerability scanning, penetration testing, and threat modeling on a regular basis to identify and mitigate security risks proactively.
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