Security Updates for Microsoft Lync Server 2013 (September 2019)

medium Nessus Plugin ID 131567
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The Microsoft Lync Server installation on the remote host is missing a security update.

Description

The Microsoft Lync Server installation on the remote host is missing a security update. It is, therefore, affected by the following vulnerability :

- An information disclosure vulnerability exists in Lync 2013. An attacker who exploited it could read arbitrary files on the victim's machine. To exploit the vulnerability, an attacker needs to instantiate a conference and modify the meeting link with malicious content and send the link to a victim. (CVE-2019-1209)

Solution

Microsoft has released KB4515509 to address this issue.

See Also

http://www.nessus.org/u?75b6b7fe

Plugin Details

Severity: Medium

ID: 131567

File Name: smb_nt_ms19_sep_lync.nasl

Version: 1.2

Type: local

Agent: windows

Published: 12/3/2019

Updated: 12/4/2019

Dependencies: office_installed.nasl, microsoft_lync_server_installed.nasl, smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

CVSS Score Source: CVE-2019-1209

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:lync

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 9/10/2019

Vulnerability Publication Date: 9/10/2019

Reference Information

CVE: CVE-2019-1209

BID: 108589

MSKB: 4515509

MSFT: MS19-4515509