Horizon Alert
Summary of the vulnerability and why it matters
Microsoft Office contains a flaw where uninitialized memory is not handled correctly. This can allow a remote attacker to execute arbitrary code by tricking a user into opening a specially crafted Office document. The potential impact includes unauthorized code execution and compromise of affected systems.
- Vulnerable Microsoft Office component
- Uninitialized memory use flaw
- Arbitrary code execution
Attack Path
How an attacker could exploit the issue
An attacker can exploit an uninitialized memory use vulnerability in Microsoft Office to execute arbitrary code. This occurs when a specially crafted Office document is opened. The vulnerability allows an attacker to gain control over the affected system.
- Exposure condition: A crafted Office document is available.
- Attacker starting point: No authentication required.
- Trigger and result: User opens document, leading to code execution.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability allows attackers to execute arbitrary code by tricking users into opening malicious Office documents. The exploit could lead to the compromise of systems and data. Given the potential for widespread impact and the ease with which an attack could be initiated, organizations should consider this a high-priority threat.
- Likely attacker skill level: High
- Required access or conditions: User opens malicious document
- Business risk or urgency: High
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Organizations utilizing Microsoft Office 2013 and Office 2013 RT on Service Pack 1 should address a vulnerability that could allow remote code execution. This is achieved through specially crafted Office documents, posing a risk to systems and data. The impact on business operations could be significant if systems are compromised.
- Identify all instances of affected software.
- Restrict document sharing and user access.
- Install vendor security updates and confirm application.
