Microsoft SharePoint Server 2010 SP2/2013 SP1/2016/2019 Markup Application Package code download

Summaryinfo

A vulnerability was found in Microsoft SharePoint Server 2010 SP2/2013 SP1/2016/2019 and classified as critical. This affects an unknown function of the component Markup Handler. Such manipulation as part of Application Package leads to code download. This vulnerability is referenced as CVE-2020-1452. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft SharePoint Server 2010 SP2/2013 SP1/2016/2019 (Groupware Software). Affected by this issue is an unknown code of the component Markup Handler. The manipulation as part of a Application Package leads to a code download vulnerability. Using CWE to declare the problem leads to CWE-494. The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

<p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p> <p>Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.</p> <p>The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.</p>

The weakness was published 09/08/2020 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2020-1452. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1495 by the MITRE ATT&CK project. The advisory points out:

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.

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

Similar entries are available at VDB-160854, VDB-160851 and VDB-160846. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Groupware Software

Vendor

• Microsoft

Name

• SharePoint Server

Version

• 2010 SP2
• 2013 SP1
• 2016
• 2019

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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