Microsoft SharePoint Enterprise Server 2013 SP1/2016 cross site scripting

A vulnerability was found in Microsoft SharePoint Enterprise Server 2013 SP1/2016 (Groupware Software). It has been rated as problematic. Affected by this issue is some processing. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-80. Impacted is integrity. An attacker might be able to inject arbitrary html and script code into the web site. This would alter the appearance and would make it possible to initiate further attacks against site visitors.

The weakness was presented 05/14/2019 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2019-0950. The attack may be launched remotely. A single authentication is necessary for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/15/2019). 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.

See 134737 and 134740 for similar entries.

Vendor

• Microsoft

Name

• SharePoint Enterprise Server

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VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: ?
VulDB Reliability: ?

VulDB Base Score: ?
VulDB Temp Score: ?
VulDB Reliability: ?
Class: Cross site scripting (CWE-80)
Local: No
Remote: Yes

Availability: ?
Status: Not defined

Price Prediction: ?
Current Price Estimation: ?

Threat Intelligenceinfoedit

Threat: ?
Adversaries: ?
Geopolitics: ?
Economy: ?
Predictions: ?
Remediation: ?Recommended: Patch
Status: ?
Reaction Time: ?
0-Day Time: ?
Exposure Time: ?05/14/2019 Advisory disclosed
05/14/2019 +0 days Countermeasure disclosed
05/15/2019 +1 days VulDB entry created
05/15/2019 +0 days VulDB last updateAdvisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: ?

CVE: CVE-2019-0950 (?)
See also: ?

Created: 05/15/2019 07:24 AM
Complete: ?

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