Vulnerabilities > CVE-2017-0243 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8570.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Windows : Microsoft Bulletins NASL id SMB_NT_MS17_JUL_OFFICE_WEB.NASL description The Microsoft Office Online Server or SharePoint Server 2010 Office Web Apps installed on the remote Windows host is missing a security update. It is, therefore, affected by multiple remote code execution vulnerabilities due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to open a specially crafted document or to visit a specially crafted website, to execute arbitrary code in the context of the current user. last seen 2020-06-01 modified 2020-06-02 plugin id 101373 published 2017-07-11 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101373 title Security Update for Microsoft Office Online Server and SharePoint Server 2010 Office Web Apps (July 2017) NASL family Windows : Microsoft Bulletins NASL id SMB_NT_MS17_JUL_OFFICE.NASL description The Microsoft Office application, Microsoft Office Compatibility Pack, or Microsoft Excel Viewer installed on the remote Windows host is missing a security update. It is, therefore, affected by multiple remote code execution vulnerabilities due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to open a specially crafted document or to visit a specially crafted website, to execute arbitrary code in the context of the current user. Note that KB2880514 for Office 2007 and KB3203468 for Office 2010 SP2 are only applicable to Office installations with the Galician language pack installed. last seen 2020-06-01 modified 2020-06-02 plugin id 101371 published 2017-07-11 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101371 title Security Update for Microsoft Office Products (July 2017) NASL family Windows : Microsoft Bulletins NASL id SMB_NT_MS17_JUL_OFFICE_SHAREPOINT.NASL description The Microsoft SharePoint Server or Project Server installed on the remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Microsoft Office due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website or open a specially crafted document, to execute arbitrary code in the context of the current user. (CVE-2017-0243) - A remote code execution vulnerability exists in Microsoft Office due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website or open a specially crafted document, to execute arbitrary code in the context of the current user. (CVE-2017-8501) - A cross-site scripting (XSS) vulnerability exists in Microsoft SharePoint Server due improper validation of user-supplied input in web requests. An authenticated, remote attacker can exploit this, via a specially crafted request, to execute arbitrary script code in a user last seen 2020-06-01 modified 2020-06-02 plugin id 101372 published 2017-07-11 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101372 title Security Update for Microsoft SharePoint Server and Project Server (July 2017)