CVE-2016-7193 is a high-severity vulnerability affecting several Microsoft Office products, including Microsoft Word and the Office Compatibility Pack. This vulnerability allows remote attackers to execute arbitrary code via a crafted RTF document, also referred to as the "Microsoft Office Memory Corruption Vulnerability." The CVSS score for this vulnerability is 7.8, indicating a high level of severity.
Organizations using affected versions of Microsoft Office should be particularly concerned due to the potential for remote code execution. The risk to organizations includes unauthorized access to sensitive information and system compromise. Given the widespread use of Microsoft Office, the impact of this vulnerability could be significant if left unpatched.
Currently, there is no public exploit confirmed for this vulnerability, but it has been added to the Known Exploited Vulnerabilities catalog, urging organizations to prioritize remediation. Organizations should prioritize patching immediately to mitigate this risk.
The vulnerability was published on October 14, 2016, and remains relevant to organizations using the affected Microsoft Office products. Continuous monitoring of security updates and timely application of patches is essential.
Vulnerability Details
The official description of CVE-2016-7193 states that the vulnerability exists in Microsoft Word 2007 SP2, Office 2010 SP2, Word 2013 SP1, Word 2013 RT SP1, Word 2016, and several other Office products. The vulnerability is categorized under CWE-119, which relates to improper restriction of operations within the bounds of a memory buffer.
The CVSS score of 7.8 indicates a high severity level, with an attack vector categorized as local and a low attack complexity. No privileges are required for exploitation, but user interaction is necessary, as the victim must open the crafted RTF document.
The vulnerability impacts confidentiality, integrity, and availability, all rated as high. Organizations should ensure they are running the latest versions of Microsoft Office to protect against this vulnerability.
Technical Analysis
The root cause of CVE-2016-7193 is a memory corruption issue that arises from handling crafted RTF documents. Attackers may leverage this vulnerability by sending a specially crafted RTF document to a user, who must then open it in a vulnerable version of Microsoft Word or related software.
The attack vector is local, requiring the user to interact with the malicious document. The complexity of the attack is low, as it does not require any special privileges or skills beyond the ability to create a crafted RTF document. The impact on confidentiality, integrity, and availability is high, as successful exploitation could lead to unauthorized access and control over the affected system.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2016-7193 is significant. Organizations using affected versions of Microsoft Office are vulnerable to arbitrary code execution, which could lead to data breaches, system compromise, or further attacks within the network.
The blast radius of this vulnerability is broad due to the widespread use of Microsoft Office products. Attackers may exploit this vulnerability to gain unauthorized access to sensitive information, potentially impacting multiple systems and users. Organizations should address this vulnerability in their priority patch cycle to mitigate the associated risks.
The urgency of addressing this vulnerability is underscored by its presence in the KEV catalog. Organizations should prioritize patching immediately to prevent exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The following versions of Microsoft Office are affected by CVE-2016-7193: Microsoft Word 2007 SP2, Office 2010 SP2, Word 2013 SP1, Word 2016, and Office Compatibility Pack SP3. All versions prior to the vendor patch are vulnerable.
Mitigation & Remediation
Organizations should apply updates as per vendor instructions to mitigate this vulnerability. The patch for this vulnerability was released in security bulletin MS16-121. Organizations should ensure they are running the latest version of Microsoft Office and consider implementing additional security measures such as continuous security testing to identify potential vulnerabilities in their systems.
Detection Guidance
To detect potential exploitation of CVE-2016-7193, organizations should monitor for unusual log indicators, such as unexpected document openings or execution of scripts triggered by RTF documents. Behavioral anomalies within Microsoft Office applications should also be scrutinized, along with network signatures that may indicate exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2016-7193 lies in its representation of the vulnerabilities that can arise from improper handling of document formats. Organizations must remain vigilant against such vulnerabilities, which may become a common attack vector for malicious actors. Security teams should focus on enhancing their defensive strategies and consider implementing penetration testing to uncover similar weaknesses.
The pattern of exploiting memory corruption vulnerabilities continues to pose threats across various software applications. Organizations should adopt a proactive security posture and regularly assess their systems.
In summary, CVE-2016-7193 represents a critical vulnerability that organizations must address to protect their data and systems from potential exploitation. Continuous improvement in security practices will be key in mitigating risks associated with this and similar vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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