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 Reader JavaScript XSL value-of select transformation out-of-bounds write attempt

Rule Explanation

This event is generated when a crafted PDF document containing XSL value-of select transforms traverses the network. Impact: Attempted User Privilege Gain Details: The vulnerability is caused by the computation that writes data past the end of the intended buffer; the computation is part of the XML / XSL processor. A crafted input triggers the flawed computation where pointer arithmetic is not appropriately checked against boundary conditions, which leads to memory write operation through the pointer that points to an invalid memory location. The vulnerability is a result of out of range pointer offset that is used to access sub-elements of an internal data structure. An attacker can potentially leverage the vulnerability to corrupt sensitive data or execute arbitrary code. Ease of Attack:

What To Look For

No information provided

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

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2018-5064
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CVE-2018-12875
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