Microsoft SharePoint Foundation input validation

Summaryinfo

A vulnerability classified as critical was found in Microsoft SharePoint Foundation, SharePoint Enterprise Server and SharePoint Server. This impacts an unknown function. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2020-1499. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft SharePoint Foundation, SharePoint Enterprise Server and SharePoint Server (Groupware Software) (version unknown). It has been declared as critical. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A spoofing vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user. The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.

The weakness was released 08/11/2020 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release was coordinated with the vendor. This vulnerability was named CVE-2020-1499. The attack can be initiated remotely. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available. The advisory points out:

A spoofing vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Groupware Software

Vendor

• Microsoft

Name

• SharePoint Enterprise Server
• SharePoint Foundation
• SharePoint Server

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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