Microsoft Lync Server/Skype for Business Server cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Microsoft Lync Server and Skype for Business Server. This vulnerability affects unknown code. This manipulation causes cross site scripting. This vulnerability is handled as CVE-2015-2536. The attack can be initiated remotely. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Lync Server and Skype for Business Server (Unified Communication Software). It has been declared as problematic. Affected by this vulnerability is an unknown code. 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 summary by CVE is:

Cross-site scripting (XSS) vulnerability in Microsoft Lync Server 2013 and Skype for Business Server 2015 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Skype for Business Server and Lync Server XSS Elevation of Privilege Vulnerability."

The weakness was released 09/08/2015 with Microsoft as MS15-104 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. This vulnerability is known as CVE-2015-2536 since 03/19/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of 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 vulnerability scanner Nessus provides a plugin with the ID 85849 (MS15-104: Vulnerabilities in Skype for Business Server and Lync Server Could Allow Elevation of Privilege (3089952)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91096 (Microsoft Skype for Business Server and Lync Server Elevation of Privilege Vulnerability (MS15-104)).

Applying the patch MS15-104 is able to eliminate this problem. The bugfix is ready for download at technet.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 (85849), SecurityFocus (BID 76601†), SecurityTracker (ID 1033497†) and Vulnerability Center (SBV-52546†). Entries connected to this vulnerability are available at VDB-77637 and VDB-77638. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Microsoft Lync Server 2013
  • Microsoft Skype for Business Server 2015

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

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: 85849
Nessus Name: MS15-104: Vulnerabilities in Skype for Business Server and Lync Server Could Allow Elevation of Privilege (3089952)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802074
OpenVAS Name: get_kb_item(MS/Lync/Server/Name
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: MS15-104

Timelineinfo

03/19/2015 🔍
09/08/2015 +173 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/09/2015 +1 days 🔍
09/09/2015 +0 days 🔍
06/14/2022 +2470 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-104
Organization: Microsoft
Status: Confirmed

CVE: CVE-2015-2536 (🔍)
GCVE (CVE): GCVE-0-2015-2536
GCVE (VulDB): GCVE-100-77641
SecurityFocus: 76601 - Microsoft Skype for Business and Lync Server CVE-2015-2536 Cross Site Scripting Vulnerability
SecurityTracker: 1033497
Vulnerability Center: 52546 - [MS15-104] Microsoft Lync Server 2013 and Skype for Business Server 2015 Remote XSS Vulnerability - CVE-2015-2536, Medium

scip Labs: https://www.scip.ch/en/?labs.20140918
See also: 🔍

Entryinfo

Created: 09/09/2015 10:07
Updated: 06/14/2022 18:13
Changes: 09/09/2015 10:07 (64), 12/09/2017 12:06 (14), 06/14/2022 18:13 (3)
Complete: 🔍
Cache ID: 216:4A9:103

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

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