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[email protected]CVE-2017-11786

HistoryOct 13, 2017 - 1:29 p.m.

CVE-2017-11786

2017-10-1313:29:00

CWE-294

[email protected]

web.nvd.nist.gov

skype for business

microsoft

lync 2013

skype for business 2016

authentication

vulnerability

privilege

nvd

cve-2017-11786

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.2 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.5%

JSON

Skype for Business in Microsoft Lync 2013 SP1 and Skype for Business 2016 allows an attacker to steal an authentication hash that can be reused elsewhere, due to how Skype for Business handles authentication requests, aka “Skype for Business Elevation of Privilege Vulnerability.”

Affected configurations

Vulners

NVD

Node

microsoft_corporationskype_for_business

CPENameOperatorVersion
microsoft:lyncmicrosoft lynceq2013
microsoft:skype_for_businessmicrosoft skype for businesseq2016

CPE	Name	Operator	Version
microsoft:lync	microsoft lync	eq	2013
microsoft:skype_for_business	microsoft skype for business	eq	2016

CNA Affected

[
  {
    "product": "Skype for Business",
    "vendor": "Microsoft Corporation",
    "versions": [
      {
        "status": "affected",
        "version": "Microsoft Lync 2013 SP1 and Skype for Business 2016"
      }
    ]
  }
]