Netscape Enterprise 3.63 SnoopServlet servlet/SnoopServlet Query String Reflected cross site scripting

Summaryinfo

A vulnerability was found in Netscape Enterprise 3.63. It has been declared as problematic. Affected is an unknown function of the file servlet/SnoopServlet of the component SnoopServlet. Executing a manipulation as part of Query String can lead to cross site scripting (Reflected). This vulnerability is registered as CVE-2018-18940. It is possible to launch the attack remotely. No exploit is available. It is advisable to use an alternative in place of the affected component.

Detailsinfo

A vulnerability has been found in Netscape Enterprise 3.63 and classified as problematic. This vulnerability affects some unknown processing of the file servlet/SnoopServlet of the component SnoopServlet. The manipulation as part of a Query String leads to a cross site scripting vulnerability (Reflected). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

servlet/SnoopServlet (a servlet installed by default) in Netscape Enterprise 3.63 has reflected XSS via an arbitrary parameter=[XSS] in the query string. A remote unauthenticated attacker could potentially exploit this vulnerability to supply malicious HTML or JavaScript code to a vulnerable web application, which is then reflected back to the victim and executed by the web browser. NOTE: this product is discontinued.

The bug was discovered 11/12/2018. The weakness was published 01/31/2019 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2018-18940 since 11/05/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 80 days. During that time the estimated underground price was around $0-$5k.

The problem might be mitigated by replacing the product with as an alternative.

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Productinfo

Vendor

• Netscape

Name

• Enterprise

Version

• 3.63

License

• free

Website

• Vendor: https://www.netscape.com/

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