Summary
This security update resolves vulnerabilities in Skype for Business and Microsoft Lync Server. The most severe of these vulnerabilities could allow elevation of privilege if a user clicks a specially crafted URL. An attacker would have to convince users to click a link in an instant messenger or email message that directs them to an affected website by way of a specially crafted URL. To learn more about the vulnerability, see Microsoft Security Bulletin MS15-104.
More information about this security update
The following articles contain more information about this security update as it relates to individual product versions. The articles may contain known issue information.
More Information
Microsoft Lync Server 2013
Reference tableThe following table contains the security update information for this software.
Security update file name |
For Microsoft Lync Server 2013 (3080353): WebComponents.msp |
Installation switches |
|
Restart requirement |
This update does not require a restart. The installer stops the required services, applies the update, and then restarts the services. However, if the required services cannot be stopped for any reason, or if required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart. |
Removal information |
Use Add or Remove Programs item in Control Panel. |
File information |
See Microsoft Knowledge Base Article 3080353. |
Registry key verification |
For Microsoft Lync Server 2013 (WebComponents.msp): HKLM\Software\Microsoft\Real-Time Communications\{2A65AB9C-57AD-4EC6-BD4E-BD61A7C583B3}\Version = 5.0.8308.927 |
Skype for Business Server 2015
Reference tableThe following table contains the security update information for this software.
Security update file name |
For Skype for Business Server 2015 (3080355): WebComponents.msp |
For Skype for Business Server 2015 (3080352): EnterpriseWebApp.msp |
|
Installation switches |
|
Restart requirement |
This update does not require a restart. The installer stops the required services, applies the update, and then restarts the services. However, if the required services cannot be stopped for any reason, or if required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart. |
Removal information |
|
File information |
See Microsoft Knowledge Base Article 3080355. See Microsoft Knowledge Base Article 3080352. |
Registry key verification |
For Skype for Business Server 2015 (WebComponents.msp): HKEY_LOCAL_MACHINE\Software\Microsoft\Real-Time Communications\{2A65AB9C-57AD-4EC6-BD4E-BD61A7C583B3}\Version = 6.0.9319.72 |
For Skype for Business Server 2015 (EnterpriseWebApp.msp): HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\F055581A89591B9409A70EFBF5EB7DE7\InstallProperties = 6.0.9319.72 |
Package Name |
Package Hash SHA 1 |
Package Hash SHA 2 |
---|---|---|
EnterpriseWebApp_2015_en_us_x64.msp |
4E2196C6EAD919109E179361058C4EB79752FE98 |
1747EBE41F7E90CE60E3929AFC020E6F0117455DF9F945B9D55293F2919C5117 |
WebComponents_2015_en-us_x64.msp |
5AE12FEA75F5031C3F85065D542379952DF83AC0 |
0BF98F955B10DDEF028C4ECF0DDB05CDFEB0F7A13AC6214D545684696EFA46DB |
WebComponents_Lync2013_en-us_x64.msp |
1067898A33AC2DCCB4843570B37159C99A0D40C5 |
F48003AA5C04F2418F6390D67B3E4111E93D78D2DF28342A41F9171A799EA05A |
EnterpriseWebApp.msp |
C9586471881CCBC3F9318654185B99F38E502C5B |
3DEAB025280379CD49069A7F818DB9CFAB472BB693E15FA11256F0E00AE7F4A5 |
WebComponents.msp |
27EFC31A1C885E1884A77FA6788715ADBB913F09 |
C8C7024A81FC4F039A51BEAC6660217B6D3A8E6D94D4636370C1730A62AB9EFD |
Help for installing updates: Support for Microsoft Update Security solutions for IT professionals: TechNet Security Troubleshooting and Support Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center Local support according to your country: International Support