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Frame busting is a vulnerability that allows sensitive data to be stolen by rendering a web application in an iframe. An attacker can create a hacker webpage that loads the target application in an iframe, then view session tokens and other data. To test for it, load the application in an iframe and check if sensitive data appears. This vulnerability can be fixed by adding directives like X-Frame-Options to the header to prevent framing. The document reported that a client's Jira installation was vulnerable to this issue.
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Top security threats to Flash/Flex applications and how to avoid them
Top security threats to Flash/Flex applications and how to avoid them
Carrell Jackson, the Web developer for Alexander Rocco Corporation, .pdf
Carrell Jackson, the Web developer for Alexander Rocco Corporation, .pdf
Loginsoft
- 1. Frame Busting Vulnerability October 20 2016
- 2. AGENDA Introduction How to Attack? Procedure to test this vulnerability How to fix? JIRA issue 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 3. INTRODUCTION Frame Busting refers to code or annotation provided by a web page intended to prevent the web page from being loaded in a sub frame. It is widely used to steal the user session and other sensitive data. This can be identified with below conditions: o If the application allow user to attack, to create the frame inside the web application then it is vulnerable. o If the attacker is able to render the web application in the frames, then the attacker can steal the sensitive data. 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 4. HOW TO ATTACK 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA. www.loginsoft.com Create a hacker web page Got spoofed and gets accessed to the hacker page Send the Hacker web page Rendering the web app in the frames
- 5. PROCEDURE TO TEST Create a .HTML files and insert the below code in HTML file. <iframe src="test.html" height="1000" width="1200"> Open your .HTML file in any browser. Validate that the given application is able to render in the frame. Open the developer console and track the network details, Response header and session token in the network. 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 6. HOW TO FIX To fix this issue, add the below directives under the Header section: o X-Frame-Options: DENY o X-Frame-Options: SAMEORIGIN o X-Frame-Options: ALLOW-FROM https://example.com/ By using the above code, application doesn’t gets rendered in the frame and instead, it will open in the new window. This can be fixed by validating the hostname and redirection code as below: If (top.location.hostname != self.location.hostname) throw 1; } catch (e) { top.location.href = self.location.href; } 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 7. CLIENT’S JIRA ISSUE Our Client’s Jira is vulnerable to this issue as shown in below: o We have created the .HTML files and mentioned our Jira application as a source in an iframes tags. o After opening the application, the user is able to observe that Jira application got rendered in the created iframe. 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 8. CLIENT’S JIRA ISSUE After login to the Jira application, user should able to view sensitive information on developer console. 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 9. CONCLUSION As this vulnerability allows attacker to view sensitive information, this is fixed in our client’s Jira application. 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com
- 10. Thank you for your time! 4437 Brookfield Corporate Dr, Suite 101, Chantilly, VA, www.loginsoft.com