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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3403 Advisory (icsa-19-248-01) Red Lion Controls Crimson 9 September 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Red Lion Controls Crimson Publisher: ICS-CERT Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-10996 CVE-2019-10990 CVE-2019-10984 CVE-2019-10978 Original Bulletin: https://www.us-cert.gov/ics/advisories/icsa-19-248-01 - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Advisory (ICSA-19-248-01) Red Lion Controls Crimson Original release date: September 05, 2019 Legal Notice All information products included in http://ics-cert.us-cert.gov are provided"as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see http://www.us-cert.gov/tlp/ . 1. EXECUTIVE SUMMARY o CVSS v3 7.8 o ATTENTION: Exploitable remotely/low skill level to exploit o Vendor: Red Lion Controls o Equipment: Crimson (Windows configuration software) o Vulnerabilities: Use After Free, Improper Restriction of Operations within the Bounds of a Memory Buffer, Pointer Issues, Use of Hard-coded Cryptographic Key 2.RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to execute code, crash the device, or view protected data. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Crimson, windows configuration software, are affected: o Crimson Versions 3.0 and prior o Crimson Versions 3.1 and prior, to release 3112.00 3.2 VULNERABILITY OVERVIEW 3.2.1 USE AFTER FREE CWE-416 Multiple vulnerabilities can be exploited when a valid user opens a specially crafted, malicious input file that can reference memory after it has been freed. CVE-2019-10996 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/ C:H/I:H/A:H ). 3.2.2 IMPROPER RESTRICTION OF OPERATIONS WITHIN THE BOUNDS OF A MEMORY BUFFER CWE-119 Multiple vulnerabilities can be exploited when a valid user opens a specially crafted, malicious input file that operates outside of the designated memory area. CVE-2019-10978 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/ C:L/I:N/A:N ). 3.2.3 POINTER ISSUES CWE-465 Multiple vulnerabilities can be exploited when a valid user opens a specially crafted, malicious input file that causes the program to mishandle pointers. CVE-2019-10984 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/ C:H/I:H/A:H ). 3.2.4 USE OF HARD-CODED CRYPTOGRAPHIC KEY CWE-321 Crimson uses a hard-coded password to encrypt protected files in transit and at rest, which may allow an attacker to access configuration files. CVE-2019-10990 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:R/S:U/ C:H/I:N/A:N ). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: United States 3.4 RESEARCHER Michael DePlante, Anthony Fuller, and Todd Manning of Trend Micro's Zero Day Initiative reported these vulnerabilities to CISA. 4. MITIGATIONS Red Lion Controls recommends users migrate to Crimson 3.1 release 3112.00 or later where the model choice allows. Updated software can be found at the following link: https://www.redlion.net/red-lion-software/crimson The use of a hardcoded key vulnerability (CVE-2019-10990) can be mitigated in two ways: o The user manual for Crimson 3.1 release 3112.00 now includes a paragraph describing the intended use of the database protection mechanism, noting the software is not designed to provide a cryptographically secure method of database protection. o In a later release, targeted for September 2019, Red Lion Controls will modify the existing database protection scheme to include an option for a second file access password designed to encrypt the file. For more information, Red Lion Controls has released a security bulletin that can be found at the following link: https://support.redlion.net/hc/en-us/articles/360033077531 CISA recommends users take the following measures to protect themselves from social engineering attacks: o Restrict system access to authorized personnel only and follow a least privilege approach. o Do not click web links or open unsolicited attachments in email messages. o Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. o Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov . 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 webpage on us-cert.gov 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 CISA for tracking and correlation against other incidents. No known public exploits specifically target these vulnerabilities. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXXWWQ2aOgq3Tt24GAQiwig/9GagZ1kKmwUgwclpCShDZqB/4s0QgDfqE kdkNe0gQmIdOSxhPCNF7JEXb3EQZZ6nnU8TIo3qs2yOdOU1zZEN8ZAOxpyw5ZruX KGsIYSZeEUd5zgQ3tYZ4tUxDNtCyP/pPuSlwGdFy0xWzbkIU4XjOplSde2r3mGWG BJ9UnQRL+Iv2fh/j/lYkdWzTKnlRWnhlmQ1pxP0Po/yllPZ/i23g7Oynu3IIcFGG X87ysIscgxJWMIjCMijtOMLjB3xqFdPlACLYaNjqHj5ZzZHsLXlH+dpGTs+IN5Fr H1WgRvBH3Wk3hxtkrbs0xSYdj/w8bxhvUKDWvFB6IlHcjdgCFffWQcDSll2WrJ7y 4NJxprUX2g+jp9RxGdTXKCQgm164gOXzTOkNa0Qel7yQyBDZ4j6ahaORfN2ZbU3s 5VTvU7OA9CueRRW/zWdZ30VWxZRJzpfEq/RM3qP+/zqhbxLZIwIEiipvliE00MTP UKBmcrPUr6uThrpCwHAwH4ois7JTycfObdDehKwyHcN1RZpRNAunlGWaHocyk3Gj Waon/lxUyi3uSaD/Fn8WGMX9IFFGmO/49KCx8VAjc1waYEE32wBiOBx50M+ZuosF 4rn0TIclPC7EJ4fGmfh73xP6NLpVqKbbaNEIr+iGuKZE18OKwz1J6sZOE5JPPhzj qemH67Yso2I= =MKyS -----END PGP SIGNATURE-----