SID 1:46056

Rule Category

FILE-OTHER -- Snort detected traffic targeting vulnerabilities in a file type that does not require enough rule coverage to have its own category.

Alert Message

FILE-OTHER Microsoft wimgapi LoadIntegrityInfo heap buffer overflow attempt

Rule Explanation

The rule triggers on a malformed WIM file which triggers a heap corruption vulnerability in the wimgapi driver for processing the Windows Image Format.

What To Look For

This rule identifies a file which triggers a heap corruption exploit existing in the LoadIntegrityInfo function of wimgapi version 10.0.16299.15.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

Rule Categories::Operating Systems::Windows

Rule Categories::File::Other

MITRE::ATT&CK Framework::Enterprise::Execution::User Execution::Malicious File

An adversary may rely upon a user opening a malicious file in order to gain execution. Users may be subjected to social engineering to get them to open a file that will lead to code execution. This user action will typically be observed as follow-on behavior from Spearphishing Attachment. Adversaries may use several types of files that require a user to execute them, including .doc, .pdf, .xls, .rtf, .scr, .exe, .lnk, .pif, and .cpl.

CVE

CVE-2018-8210

Additional Links

msrc.microsoft.com/update-guide/en-us/advisory/CVE-2018-8210

www.talosintelligence.com/reports/TALOS-2018-0545/

Rule Vulnerability

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 Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.

CVE-2018-8210

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