Rule Category

FILE-PDF -- Snort has detected suspicious traffic related to a PDF file. PDFs are easily exploitable. They include many ways to encapsulate data and are often targeted by attackers, who use the PDF's household name status for social engineering. Therefore, Snort includes Many PDF-targeted rules.

Alert Message

FILE-PDF Adobe Acrobat Reader xfa subform use after free attempt

Rule Explanation

This rule looks for nested Adobe XML XFA subforms that are used for exploiting use-after vulnerabilities in Adobe Acrobat and Reader products.

What To Look For

This rule fires on nested Adobe XML XFA subforms that are used for exploiting use-after vulnerabilities in Adobe Acrobat and Reader products.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

CVE

Additional Links

Rule Vulnerability

Use After Free

Use After Free (UAF) attacks target computer memory flaws to corrupt the memory execute code. The name refers to attempts to use memory after it has been freed, which can cause a program to crash under normal circumstances, or result in remote code execution in a successful attack.

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2017-2951
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CVE-2017-3034
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CVE-2017-3120
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MITRE ATT&CK Framework

Tactic: Impact

Technique: Application or System Exploitation

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