Vulnerability CVE-2017-8550

Vulnerability Name:

CVE-2017-8550 (CCN-126809)

Assigned:

2017-06-13

Published:

2017-06-13

Updated:

2019-03-19

Summary:

A remote code execution vulnerability exists in Skype for Business when the software fails to sanitize specially crafted content, aka "Skype for Business Remote Code Execution Vulnerability".

CVSS v3 Severity:

5.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
3.6 Low (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:N/A:N)
5.6 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:N/A:N/E:F/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-79

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2017-8550

Source: BID
Type: Third Party Advisory, VDB Entry
98916

Source: CCN
Type: BID-98916
Microsoft Skype for Business and Lync Server CVE-2017-8550 Remote Code Execution Vulnerability

Source: XF
Type: UNKNOWN
ms-skype-cve20178550-info-disc(126809)

Source: CCN
Type: Microsoft Security TechCenter
Security Update Guide - June 2017 Security Release

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8550

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [07-12-2017]

Source: EXPLOIT-DB
Type: Exploit, Third Party Advisory, VDB Entry
42316

Vulnerable Configuration:

Configuration 1:

cpe:/a:microsoft:office:2016:*:*:*:click-to-run:*:*:*

Configuration CCN 1:

cpe:/a:microsoft:office:2016:*:*:*:click-to-run:*:x32:*

OR cpe:/a:microsoft:office:2016:*:*:*:click-to-run:*:x64:*

Denotes that component is vulnerable

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