National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-11687 Detail

Current Description

An issue was discovered in the DICOM Part 10 File Format in the NEMA DICOM Standard 1995 through 2019b. The preamble of a DICOM file that complies with this specification can contain the header for an executable file, such as Portable Executable (PE) malware. This space is left unspecified so that dual-purpose files can be created. (For example, dual-purpose TIFF/DICOM files are used in digital whole slide imaging for applications in medicine.) To exploit this vulnerability, someone must execute a maliciously crafted file that is encoded in the DICOM Part 10 File Format. PE/DICOM files are executable even with the .dcm file extension. Anti-malware configurations at healthcare facilities often ignore medical imagery. Also, anti-malware tools and business processes could violate regulatory frameworks (such as HIPAA) when processing suspicious DICOM files. Credit for the discovery of this vulnerability goes to Markel Picado Ortiz (d00rt) of Cylera Labs.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 9.3 HIGH
Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/108730
https://github.com/d00rt/pedicom Exploit Third Party Advisory
https://github.com/d00rt/pedicom/blob/master/doc/Attacking_Digital_Imaging_and_Communication_in_Medicine_(DICOM)_file_format_standard_-_Markel_Picado_Ortiz_(d00rt).pdf Technical Description Third Party Advisory
https://labs.cylera.com/2019.04.16/pe-dicom-medical-malware Exploit Technical Description Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:nema:dicom_standard:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1995
Up to (including)
2019b


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-11687
NVD Published Date:
05/02/2019
NVD Last Modified:
06/12/2019