Vulnerabilities > CVE-2016-7193 - 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 Word 2007 SP2, Office 2010 SP2, Word 2013 SP1, Word 2013 RT SP1, Word 2016, Word for Mac 2011, Word 2016 for Mac, Office Compatibility Pack SP3, Word Viewer, Word Automation Services on SharePoint Server 2010 SP2, Word Automation Services on SharePoint Server 2013 SP1, Office Web Apps 2010 SP2, Office Web Apps Server 2013 SP1, and Office Online Server allow remote attackers to execute arbitrary code via a crafted RTF document, aka "Microsoft Office Memory Corruption Vulnerability."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 10 |
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.
Msbulletin
| bulletin_id | MS16-121 |
| bulletin_url | |
| date | 2016-10-11T00:00:00 |
| impact | Remote Code Execution |
| knowledgebase_id | 3194063 |
| knowledgebase_url | |
| severity | Important |
| title | Security Update for Microsoft Office |
Nessus
NASL family Windows : Microsoft Bulletins NASL id SMB_NT_MS16-121.NASL description The Microsoft Office application installed on the remote Windows host is missing a security update. It is, therefore, affected by a remote code execution vulnerability due to improper handling of RTF files. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. last seen 2020-06-01 modified 2020-06-02 plugin id 94016 published 2016-10-12 reporter This script is Copyright (C) 2016-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/94016 title MS16-121: Security Update for Microsoft Office (3194063) NASL family MacOS X Local Security Checks NASL id MACOSX_MS16-121_OFFICE.NASL description The version of Microsoft Office installed on the remote Mac OS X host is affected by a remote code execution vulnerability due to improper handling of RTF files. An unauthenticated, remote attacker can exploit this by convincing a user to open a specially crafted Office file, resulting in the execution of arbitrary code in the context of the current user. last seen 2020-06-01 modified 2020-06-02 plugin id 94015 published 2016-10-12 reporter This script is Copyright (C) 2016-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/94015 title MS16-121: Security Update for Microsoft Office (3194063) (Mac OS X)
The Hacker News
| id | THN:231C21CDC15C09B8A58B71A738D875F1 |
| last seen | 2018-01-27 |
| modified | 2016-10-12 |
| published | 2016-10-11 |
| reporter | Swati Khandelwal |
| source | https://thehackernews.com/2016/10/Microsoft-security-patch-updates.html |
| title | Microsoft Patches 5 Zero-Day Vulnerabilities Being Exploited in the Wild |
References
- http://www.securityfocus.com/bid/93372
- http://www.securityfocus.com/bid/93372
- http://www.securitytracker.com/id/1036984
- http://www.securitytracker.com/id/1036984
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-121
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-121