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TLP:WHITE

Advisory (ICSA-18-324-01)

Teledyne DALSA Sherlock

Original release date: November 20, 2018

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1. EXECUTIVE SUMMARY

  • CVSS v3 7.3
  • ATTENTION: Low skill level to exploit
  • Vendor: Teledyne DALSA
  • Equipment: Sherlock
  • Vulnerability: Stack-based Buffer Overflow

2. RISK EVALUATION

Successful exploitation of this vulnerability could crash the device being accessed; a buffer overflow condition may allow remote code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Sherlock, a machine vision software interface, are affected:

  • Sherlock Version 7.2.7.4 and prior.

3.2 VULNERABILITY OVERVIEW

3.2.1    STACK-BASED BUFFER OVERFLOW CWE-121

A stack-based buffer overflow vulnerability has been identified, which may allow remote code execution. 

CVE-2018-17930 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Canada

3.4 RESEARCHER

Robert Hawes reported this vulnerability to NCCIC.

4. MITIGATIONS

Teledyne DALSA recommends users upgrade to Sherlock Version 7.2.7.5 or later. The latest update can be obtained from the following link:

https://www.teledynedalsa.com/en/products/imaging/vision-software/sherlock/

NCCIC recommends that users take the following measures to protect themselves from social engineering attacks: 

NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly available on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.

No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.


Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  http://ics-cert.us-cert.gov 
or incident reporting:  https://ics-cert.us-cert.gov/Report-Incident?

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