Datakit CrossCAD/Ware

1. EXECUTIVE SUMMARY

• CVSS v3 7.8
• ATTENTION: Low attack complexity 
• Vendor: Datakit 
• Equipment: CrossCAD/Ware_x64 library 
• Vulnerability: Out-of-bounds Read, Out-of-bounds Write 

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to disclose sensitive information or execute arbitrary code. 

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Datakit product, a conversion engine, is affected: 

• CrossCAD/Ware_x64 library: All versions prior to 2023.1 

3.2 VULNERABILITY OVERVIEW

3.2.1 OUT-OF-BOUNDS READ CWE-125 

Datakit CrossCadWare_x64.dll contains an out-of-bounds read past the end of an allocated buffer while parsing a specially crafted SLDPRT file. This vulnerability could allow an attacker to disclose sensitive information. 

CVE-2023-22295 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). 

3.2.2 OUT-OF-BOUNDS READ CWE-125 

Datakit CrossCadWare_x64.dll contains an out-of-bounds read past the end of an allocated buffer while parsing a specially crafted SLDPRT file. This vulnerability could allow an attacker to disclose sensitive information. 

CVE-2023-22321 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 OUT-OF-BOUNDS READ CWE-125 

Datakit CrossCadWare_x64.dll contains an out-of-bounds read past the end of an allocated buffer while parsing a specially crafted SLDPRT file. This vulnerability could allow an attacker to disclose sensitive information. 

CVE-2023-22354 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). 

3.2.4 OUT-OF-BOUNDS READ CWE-125 

Datakit CrossCadWare_x64.dll contains an out-of-bounds read past the end of an allocated buffer while parsing a specially crafted SLDPRT file. This vulnerability could allow an attacker to disclose sensitive information. 

CVE-2023-22846 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). 

3.2.5 OUT-OF-BOUNDS WRITE CWE-787 

Datakit CrossCadWare_x64.dll contains an out-of-bounds write past the end of an allocated buffer while parsing a specially crafted SLDPRT file. This could allow an attacker to execute code in the context of the current process. 

CVE-2023-23579 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). 

3.3 BACKGROUND

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

3.4 RESEARCHER

Siemens reported these vulnerabilities to CISA. 

4. MITIGATIONS

Datakit recommends user upgrade to v2023.1 or later. 

Datakit has identified specific workarounds and mitigations that should be applied to reduce the risk: 

• Do not open untrusted SLDPRT files with CrossCAD/Ware 
• Update CrossCAD/Ware to 2023.1 or a later version. 

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:

• Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet.
• Locate control system networks and remote devices behind firewalls and isolate them from business networks.
• When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.

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 at cisa.gov/ics. Several CISA products detailing cyber defense best 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 at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

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

CISA also recommends users take the following measures to protect themselves from social engineering attacks: 

• Do not click web links or open attachments in unsolicited email messages. 
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. 
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. 

No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.