Microsoft SharePoint Server 2010 SP2/2013 SP1/2016/2019 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

A vulnerability classified as problematic has been found in Microsoft SharePoint Server 2010 SP2/2013 SP1/2016/2019 (Groupware Software). This affects some unknown processing. 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:

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, aka 'Microsoft Office SharePoint XSS Vulnerability'. This CVE ID is unique from CVE-2020-1198, CVE-2020-1227, CVE-2020-1482, CVE-2020-1514, CVE-2020-1575.

The weakness was shared 09/08/2020 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2020-1345. It is possible to initiate the attack remotely. Required for exploitation is a authentication. 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:

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.

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

The entries 160933 and 160931 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.1
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.4
Vendor Vector (Microsoft): 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Timelineinfo

09/08/2020 🔍
09/08/2020 +0 days 🔍
09/09/2020 +1 days 🔍
09/09/2020 +0 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2020-1345 (🔍)
See also: 🔍

Entryinfo

Created: 09/09/2020 13:50
Updated: 09/09/2020 13:55
Changes: 09/09/2020 13:50 (52), 09/09/2020 13:55 (17)
Complete: 🔍

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