Microsoft Power BI Report Server cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in Microsoft Power BI Report Server, SQL Server 2017 Reporting Services and SQL Server 2019 Reporting Services. Affected is an unknown function. Executing a manipulation can lead to cross site scripting. This vulnerability is registered as CVE-2019-1332. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Microsoft Power BI Report Server, SQL Server 2017 Reporting Services and SQL Server 2019 Reporting Services (Database Software) (version unknown). It has been declared as problematic. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. 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:

A cross-site scripting (XSS) vulnerability exists when Microsoft SQL Server Reporting Services (SSRS) does not properly sanitize a specially-crafted web request to an affected SSRS server, aka 'Microsoft SQL Server Reporting Services XSS Vulnerability'.

The weakness was published 12/10/2019 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release has been coordinated with the vendor. This vulnerability was named CVE-2019-1332. 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 neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007. The advisory points out:

A cross-site scripting (XSS) vulnerability exists when Microsoft SQL Server Reporting Services (SSRS) does not properly sanitize a specially-crafted web request to an affected SSRS server. An attacker who successfully exploited the vulnerability could run scripts in the context of the targeted user. The attacks could allow the attacker to read content that the attacker is not authorized to read, execute malicious code, and use the victim's identity to take actions on the site on behalf of the user, such as change permissions and delete content.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Database Software

Vendor

• Microsoft

Name

• Power BI Report Server
• SQL Server 2017 Reporting Services
• SQL Server 2019 Reporting Services

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Once again VulDB remains the best source for vulnerability data.

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