FILE-IMAGE -- Snort detected suspicious traffic targeting vulnerabilities found inside images files, regardless of delivery method, targeted software, or image type. (Examples include: jpg, png, gif, bmp). These rules search for malformed images used to exploit system. Attackers alter image attributes, often to include shell code, so they are susceptible to vulnerabilities when they are parsed and send commands instead of loading the image.
FILE-IMAGE Adobe Acrobat Pro EMR_STRETCHDIBITS out-of-bounds write attempt
This event is generated when an attempt to exploit a vulnerability in the EMR_STRETCHDIBITS record of an EMF file, is detected.
The vulnerability is caused by the computation that writes data past the end of the intended buffer; the computation is part of the image conversion engine when processing Enhanced Metafile Format (EMF) data related to block transfer of pixels. 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.
Ease of Attack:
What To Look For
No public information
No known false positives
Cisco Talos Intelligence Group
MITRE ATT&CK Framework
For reference, see the MITRE ATT&CK vulnerability types here:
CVE Additional Information
CVE-2018-12787Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have an Out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.
||Ease of Access||