Detections
Analytics
Security Updates for Microsoft Office (July 2019) (macOS)
high Nessus Plugin ID 127124
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Synopsis
An application installed on the remote macOS or Mac OS X host is affected by remote code execution vulnerabilities.Description
The Microsoft Office application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by multiple vulnerabilities:- An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible. This security update addresses the issue by validating display names upon creation in Microsoft Exchange, and by rendering invalid display names correctly in Microsoft Outlook clients. (CVE-2019-1084)
- A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data;
or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel.
In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file. The security update addresses the vulnerability by correcting how Microsoft Excel handles objects in memory.
(CVE-2019-1110, CVE-2019-1111)
Solution
Microsoft has released a set of patches for Microsoft Office for Mac.See Also
Plugin Details
Severity: High
ID: 127124
File Name: macos_ms19_jul_office.nasl
Version: 1.3
Type: local
Agent: macosx
Family: MacOS X Local Security Checks
Published: 8/5/2019
Updated: 5/8/2024
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 6.9
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2019-1111
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:apple:mac_os_x, cpe:/a:microsoft:office, cpe:/a:microsoft:excel, cpe:/a:microsoft:outlook
Required KB Items: Host/MacOSX/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 7/16/2019
Vulnerability Publication Date: 7/9/2019