Rule Category

FILE-OFFICE -- Snort detected traffic targeting vulnerabilities in files belonging to the Microsoft Office suite of software (Excel, PowerPoint, Word, Visio, Access, Outlook, etc.).

Alert Message

FILE-OFFICE Microsoft Office directory traversal attempt

Rule Explanation

This event is generated when an attacker attempts to exploit a directory traversal vulnerability in Microsoft Office Impact: Information disclosure Remote code execution Details: The rule is looking for the exploitation of the vulnerability when attempting to do directory traversal. Ease of Attack:

What To Look For

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic:

Technique:

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org

CVE

Additional Links

Rule Vulnerability

CVE Additional Information

CVE-2019-0801
A remote code execution vulnerability exists when Microsoft Office fails to properly handle certain files.To exploit the vulnerability, an attacker would have to convince a user to open a specially crafted URL file that points to an Excel or PowerPoint file that was also downloaded.The update addresses the vulnerability by correcting how Office handles these files., aka 'Office Remote Code Execution Vulnerability'.
Details
Severity Base Score7.8
Impact Score5.9 Exploit Score1.8
Confidentiality ImpactHIGH Integrity ImpactHIGH
Availability ImpactHIGH Attack VectorLOCAL
ScopeUNCHANGED User InteractionREQUIRED
Authentication Ease of AccessLOW
Privileges RequiredNONE