KB4018588: Security Update for Microsoft Exchange Server

Medium Nessus Plugin ID 101522


The remote Microsoft Exchange Server is affected by multiple vulnerabilities.


The remote Microsoft Exchange Server is missing a security update. It is, therefore, affected by multiple vulnerabilities :

- Multiple cross-site scripting (XSS) vulnerabilities exist in Microsoft Exchange Outlook Web Access (OWA) due to improper validation of user-supplied input in web requests. An unauthenticated, remote attacker can exploit these, via a specially crafted link, to execute arbitrary script code in a user's browser session.
(CVE-2017-8559, CVE-2017-8560)

- A cross-site redirection vulnerability exists due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to follow a link, to cause the user to load a malicious website, which then can be used to conduct further attacks. (CVE-2017-8621)


Microsoft has released a set of patches for Exchange Server 2010, 2013, and 2016.

See Also


Plugin Details

Severity: Medium

ID: 101522

File Name: smb_nt_ms17_jul_4018588.nasl

Version: $Revision: 1.4 $

Type: local

Agent: windows

Published: 2017/07/13

Modified: 2017/09/14

Dependencies: 57033, 77910

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.6

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 4.7

Temporal Score: 4.3

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: cpe:/a:microsoft:exchange_server

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/07/11

Vulnerability Publication Date: 2017/07/11

Reference Information

CVE: CVE-2017-8559, CVE-2017-8560, CVE-2017-8621

BID: 99448, 99449, 99533

OSVDB: 160733, 160735, 160739

MSKB: 4018588

MSFT: MS17-4018588