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[R1] Sophos XG Firewall login.jsp utype Parameter Reflected XSS

Medium

Synopsis

Sophos XG Firewall provides login pages for users at https://[target]/userportal/webpages/myaccount/login.jsp and administrators at https://[target]:4444/webconsole/webpages/login.jsp. These links can insert a value into the "username" login field through the "utype" parameter. For example, the following will pre-populate the "username" field to be albino_lobster:

https://[target]:4444/webconsole/webpages/login.jsp?utype=1albino_lobster

An attacker can also inject JavaScript through this method. The following will create a popup box that says “LOBSTER” when the user mouses over the username field:

https://[target]/userportal/webpages/myaccount/login.jsp?utype=lalbino_lobster%22%20onmouseover=%22alert(%27LOBSTER%27);%22

Note that Google Chrome detects/disables these attacks but Mozilla Firefox does not. Additionally, the Sophos XG Firewall comes with default admin credentials of "admin/admin" that can be used with the admin HTTP interface (port 4444) and SSH, as seen on page 8 of the Sophos XG Firewall Administrator Guide.

Solution

The vendor has released Sophos XG Firewall 16.05 MR1 to address this issue.

Disclosure Timeline

2016-12-28 - Issue discovered
2016-12-29 - Contacted vendor with details
2017-01-03 - Vendor confirms receipt
2017-02-02 - Vendor releases 16.05 MR1 which fixes
2017-02-27 - Ping vendor for update
2017-02-28 - Vendor confirms issue fixed in 16.5 shipped mid-Jan

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Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

Risk Information

Tenable Advisory ID
TRA-2017-11
Credit

Jacob Baines, Tenable Network Security

CVSSv2 Base / Temporal Score
4.3 / 3.6
CVSSv2 Vector
(AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:OF/RC:C)
Additional Keywords
NC-15858
Affected Products
Sophos XG Firewall 16.01.2.222
Risk Factor
Medium

Advisory Timeline

2017-03-15 - [R1] Initial Release
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