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 Imagemagick XBM tranformation information leak attempt
This event is generated when an information disclosure attempt is detected in ImageMagick Impact: Attempted Information Leak Details: A programming deficiency exists in ImageMagick's handling of XBM files. An invalid conversion from an unsigned integer value to a signed integer value can lead to memory disclosure on affected systems. Ease of Attack:
No public information
No known false positives
Cisco Talos Intelligence Group
Tactic:
Technique:
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org
CVE-2018-16323ReadXBMImage in coders/xbm.c in ImageMagick before 7.0.8-9 leaves data uninitialized when processing an XBM file that has a negative pixel value. If the affected code is used as a library loaded into a process that includes sensitive information, that information sometimes can be leaked via the image data. |
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