Skype 8.43.0.56 Available
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Description

Skype has released a new version of their internet telephony software. Use the action below to update Skype to the latest version (8.43.0.56).

Note: Affected computers may report back as 'Pending Restart' once the update has run successfully, but will not report back their final status until the computer has been restarted.

Important Note: The Skype update will automatically shut down all running instances of Skype. To prevent this behavior, you may want to deploy this action with the user constraint "Run only when no user is present" or display a message box before action execution instructing the user to shut down Skype before applying this update.

File Size:

59.3 MB

CVE:

Unspecified

Property Details

ID26619
StatusAlpha - Code that was just developed
TitleSkype 8.43.0.56 Available
DomainBESC
CategoryUpdate
Download Size62164624
SourceSkype
Source IDUnspecified
Source SeverityUnspecified
Source Release Date4/17/2019 12:00:00 AM
CVENamesUnspecified
SANSIDSANS C4
KeywordsSkype
Added by on 4/30/2019 3:22:27 PM
Last Modified by on 4/30/2019 3:22:27 PM
Counters 385 Views / 3 Downloads
User Rating 1 star 2 star 3 star 4 star 5 star * Average over 0 ratings. ** Log In or Register to add your rating.

Relevance

Used in 361 fixlets   * Results in a true/false
Show indented relevance
(if( name of operating system starts with "Win" ) then platform id of operating system != 3 else false) AND (if exists property "in proxy agent context" then ( not in proxy agent context ) else true )
Used in 256 fixlets and 9 analyses   * Results in a true/false
Show indented relevance
name of operating system as lowercase starts with "win"
Used in 14 fixlets   * Results in a true/false
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version of client >= "7"
Used in 101 fixlets   * Results in a true/false
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not exists values "PROCESSOR_ARCHITECTURE" whose (it as string as lowercase = "ia64") of keys "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" of registry
Used in 1 fixlet   * Results in a true/false
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((name of it = "WinXP") or (name of it = "WinXP-2003") or (name of it = "Win7") or (name of it = "Win8") or (name of it = "Win8.1") or (name of it = "WinVista" AND product type of it = nt workstation product type)) of operating system OR (it starts with "Win" AND it does not start with "Win20") of name of operating system AND (exists value "CurrentMajorVersionNumber" of it AND value "CurrentMajorVersionNumber" of it as integer = 10) of key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion" of native registry
Used in 1 fixlet   * Results in a true/false
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exists key "HKLM\Software\Skype\Phone" of registry and (it < "8.43.0.56") of version of file (value "SkypePath" of key "HKLM\Software\Skype\Phone" of registry as string)
Used in 1 fixlet   * Results in a true/false
Show indented relevance
exists keys whose ((it contains "Skype" AND it != "Skype Click to Call" AND it does not contain "Toolbars" and it does not contain "Update for Skype for Business" and it does not contain "Skype HoloLens Add-In" and it does not contain "Skype Meetings App") of (value "DisplayName" of it as string)) of key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" of registry

Actions

Action 1 (default)

Action Link Click here to initiate the deployment process.
Script Type BigFix Action Script
prefetch SkypeSetupFull.exe sha1:07b8edcd522f82e1652e54f18223f06ce636663d size:62164624 https://download.skype.com/s4l/download/win/Skype-8.43.0.56.exe sha256:32650153123c5850c3aed7dc56fceaef9d8859810bd406d670188a6572413cb4

wait msiexec /x {name of key whose (name of it starts with "{" and (it contains "Skype" AND it != "Skype Click to Call" AND it does not contain "Toolbars" AND it does not contain "Skype for Business" AND it does not contain "Skype Meetings App") of (value "DisplayName" of it as string)) of key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" of registry} /qn /norestart

wait __Download\SkypeSetupFull.exe ALLUSERS=1 FEATURE_IEPLUGIN=0 FEATURE_FFPLUGIN=0 INSTALLLEVEL=1 STARTSKYPE=FALSE TRANSFORMS=:RemoveStartup.mst /VERYSILENT /NOLAUNCH /SILENT

regset "[HKEY_LOCAL_MACHINE\SOFTWARE\Skype\Installer]" "InstallUpdates"=dword:00000000

action may require restart
Success Criteria

This action will be considered successful when the applicability relevance evaluates to false.

Action 2

Action Link Click here for more information from SANS on vulnerabilities in instant messaging applications.
Script Type URL
http://www.sans.org/top20/#c4
    

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Comments

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bmafever -
This Skype fixlet was adjusted to account for an endpoint with "Skype Meetings App" installed.