Detections
Analytics
Security Updates for Microsoft Skype for Business and Microsoft Lync (October 2017)
high Nessus Plugin ID 103753
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Synopsis
The Microsoft Skype for Business or Microsoft Lync installation on the remote host is missing a security update.Description
The Microsoft Skype for Business or Microsoft Lync installation on the remote host is missing a security update. It is, therefore, affected by the following vulnerability :- An elevation of privilege vulnerability exists when Skype for Business fails to properly handle specific authentication requests. An authenticated attacker who successfully exploited this vulnerability could steal an authentication hash that can be reused elsewhere. The attacker could then take any action that the user had permissions for, causing possible outcomes that could vary between users. (CVE-2017-11786)
Solution
Microsoft has released the following security updates to address this issue:-KB4011159
-KB4011179
See Also
Plugin Details
Severity: High
ID: 103753
File Name: smb_nt_ms17_oct_skype.nasl
Version: 1.8
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 10/10/2017
Updated: 2/17/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 6.9
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2017-11786
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:microsoft:skype_for_business, cpe:/a:microsoft:lync
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Ease: No known exploits are available
Patch Publication Date: 10/10/2017
Vulnerability Publication Date: 10/10/2017
Reference Information
CVE: CVE-2017-11786
BID: 101156