Microsoft SharePoint Server 2013 SP1 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 has been found in Microsoft SharePoint Server 2013 SP1 and classified as problematic. This issue affects some unknown processing. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2017-8629. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft SharePoint Server 2013 SP1 (Groupware Software). This affects an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

Microsoft SharePoint Server 2013 Service Pack 1 allows an elevation of privilege vulnerability when it fails to properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint XSS Vulnerability".

The bug was discovered 09/12/2017. The weakness was presented 09/12/2017 as KB4011113 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2017-8629 since 05/03/2017. It is possible to initiate the attack remotely. A authentication is necessary for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue. The advisory points out:

An elevation of privilege 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 103141 (Security Updates for Microsoft Sharepoint Server (September 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 110303 (Microsoft Office and Microsoft Office Services and Web Apps Security Update September 2017).

Applying the patch KB4011113 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 (103141) and SecurityFocus (BID 100725†). See VDB-106470, VDB-106474, VDB-106475 and VDB-106476 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 🔍
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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: 103141
Nessus Name: Security Updates for Microsoft Sharepoint Server (September 2017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft SharePoint Server 2013 Service Pack 1 Elevation of Privilege Vulnerability (KB4011113)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: KB4011113

Timelineinfo

05/03/2017 🔍
09/12/2017 +132 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/13/2017 +1 days 🔍
01/11/2021 +1216 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB4011113
Researcher: Jayson Grace
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8629 (🔍)
GCVE (CVE): GCVE-0-2017-8629
GCVE (VulDB): GCVE-100-106473

OVAL: 🔍

SecurityFocus: 100725 - Microsoft SharePoint Server CVE-2017-8629 Remote Privilege Escalation Vulnerability
SecurityTracker: 1039329

See also: 🔍

Entryinfo

Created: 09/13/2017 13:00
Updated: 01/11/2021 18:41
Changes: 09/13/2017 13:00 (73), 11/15/2019 13:58 (11), 01/11/2021 18:35 (2), 01/11/2021 18:41 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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