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MicrosoftCVE-2018-8238

HistoryJul 11, 2018 - 12:29 a.m.

CVE-2018-8238

2018-07-1100:29:00

microsoft

web.nvd.nist.gov

107

skype

microsoft

lync

vulnerability

unc path

bypass

security

nvd

CVSS2

9.3

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.1

Confidence

High

EPSS

0.005

Percentile

77.2%

JSON

A security feature bypass vulnerability exists when Skype for Business or Lync do not properly parse UNC path links shared via messages, aka “Skype for Business and Lync Security Feature Bypass Vulnerability.” This affects Skype, Microsoft Lync.

Affected configurations

Nvd

Vulners

Node

microsoftlyncMatch2013sp1

microsoftskype_for_businessMatch2016

VendorProductVersionCPE
microsoftlync2013cpe:2.3:a:microsoft:lync:2013:sp1:*:*:*:*:*:*
microsoftskype_for_business2016cpe:2.3:a:microsoft:skype_for_business:2016:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
microsoft	lync	2013	cpe:2.3:a:microsoft:lync:2013:sp1::::::
microsoft	skype_for_business	2016	cpe:2.3:a:microsoft:skype_for_business:2016:::::::*

CNA Affected

[
  {
    "product": "Skype",
    "vendor": "Microsoft",
    "versions": [
      {
        "status": "affected",
        "version": "Business 2016 (32-bit)"
      },
      {
        "status": "affected",
        "version": "Business 2016 (64-bit)"
      }
    ]
  },
  {
    "product": "Microsoft Lync",
    "vendor": "Microsoft",
    "versions": [
      {
        "status": "affected",
        "version": "2013 Service Pack 1 (32-bit)"
      },
      {
        "status": "affected",
        "version": "2013 Service Pack 1 (64-bit)"
      }
    ]
  }
]