FILE-OFFICE -- Snort detected traffic targeting vulnerabilities in files belonging to the Microsoft Office suite of software (Excel, PowerPoint, Word, Visio, Access, Outlook, etc.).
FILE-OFFICE Microsoft Office Excel fileVersion use-after-free attempt
Use-after-free vulnerability in Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Excel for Mac 2011, Excel 2016 for Mac, Excel Viewer, Office Compatibility Pack SP3, and Excel Services on SharePoint Server 2007 SP3, 2010 SP2, and 2013 SP1 allows remote attackers to execute arbitrary code via a long fileVersion element in an Office document, aka "Microsoft Office Memory Corruption Vulnerability."
This rule triggers on a Microsoft Excel file containing a malicious fileVersion element.
No public information
No known false positives
Talos research team
No rule groups
Memory Corruption
Memory Corruption is any vulnerability that allows the modification of the content of memory locations in a way not intended by the developer. Memory corruption results are inconsistent; they could lead to fatal errors and system crashes or data leakage; some have no effect at all.
CVE-2015-2558 |
Loading description
|
Tactic: Execution
Technique: Exploitation for Client Execution
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org