Microsoft SharePoint Enterprise Server 2013 SP1/2016 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Microsoft SharePoint Enterprise Server 2013 SP1/2016. Impacted is an unknown function. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2017-11777. The attack may be performed from remote. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft SharePoint Enterprise Server 2013 SP1/2016 (Groupware Software). It has been declared as problematic. This vulnerability affects an unknown code block. 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.

The bug was discovered 10/10/2017. The weakness was presented 10/10/2017 as KB4011157 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability was named CVE-2017-11777 since 07/31/2017. The attack can be initiated remotely. The requirement for exploitation is a single authentication. 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 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 vulnerability scanner Nessus provides a plugin with the ID 103786 (Security Updates for Microsoft Sharepoint Server (October 2017)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110306 (Microsoft Office and Microsoft Office Services and Web Apps Security Update October 2017).

Applying the patch KB4011157 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103786) and SecurityFocus (BID 101155†). See VDB-107698, VDB-107703, VDB-107727 and VDB-107729 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103786
Nessus Name: Security Updates for Microsoft Sharepoint Server (October 2017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Multiple XSS Vulnerabilities (KB4011170)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: KB4011157

Timelineinfo

07/31/2017 🔍
10/10/2017 +70 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/11/2017 +1 days 🔍
10/11/2017 +0 days 🔍
10/13/2017 +2 days 🔍
01/16/2021 +1191 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB4011157
Researcher: Marco Pizer, Sven Engel
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11777 (🔍)
GCVE (CVE): GCVE-0-2017-11777
GCVE (VulDB): GCVE-100-107728

OVAL: 🔍

SecurityFocus: 101155
SecurityTracker: 1039540

See also: 🔍

Entryinfo

Created: 10/11/2017 23:38
Updated: 01/16/2021 12:59
Changes: 10/11/2017 23:38 (77), 11/23/2019 17:47 (3), 01/16/2021 12:54 (3), 01/16/2021 12:59 (3)
Complete: 🔍
Cache ID: 216::103

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