SB2020061204 - Multiple vulnerabilities in Rockwell Automation FactoryTalk Linx Software

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2020-11999)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to an exposed API call allows users to provide files to be processed without sanitation. A remote authenticated attacker can specify a filename to execute arbitrary code and modify files or data.

The following products that utilize FactoryTalk Linx Software are affected:

• Connected Components Workbench: Version 12 and prior
• ControlFLASH: Version 14 and later
• ControlFLASH Plus: Version 1 and later
• FactoryTalk Asset Centre: Version 9 and later
• FactoryTalk Linx CommDTM: Version 1 and later
• Studio 5000 Launcher: Version 31 and later
• Studio 5000 Logix Designer software: Version 32 and prior

2) Input validation error (CVE-ID: CVE-2020-12001)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to the parsing mechanism that processes certain file types does not provide input sanitation. A remote authenticated attacker can use specially crafted files to traverse the file system and modify or expose sensitive data or execute arbitrary code.

The following products that utilize FactoryTalk Linx Software are affected:

• Connected Components Workbench: Version 12 and prior
• ControlFLASH: Version 14 and later
• ControlFLASH Plus: Version 1 and later
• FactoryTalk Asset Centre: Version 9 and later
• FactoryTalk Linx CommDTM: Version 1 and later
• Studio 5000 Launcher: Version 31 and later
• Studio 5000 Logix Designer software: Version 32 and prior

3) Path Traversal (CVE-ID: CVE-2020-12003)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the local hard drive.

The following products that utilize FactoryTalk Linx Software are affected:

• Connected Components Workbench: Version 12 and prior
• ControlFLASH: Version 14 and later
• ControlFLASH Plus: Version 1 and later
• FactoryTalk Asset Centre: Version 9 and later
• FactoryTalk Linx CommDTM: Version 1 and later
• Studio 5000 Launcher: Version 31 and later
• Studio 5000 Logix Designer software: Version 32 and prior

4) Arbitrary file upload (CVE-ID: CVE-2020-12005)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the communication function. A remote attacker can upload a file with bad compression, consuming all the available CPU resources, leading to a denial-of-service condition.

The following products that utilize FactoryTalk Linx Software are affected:

• Connected Components Workbench: Version 12 and prior
• ControlFLASH: Version 14 and later
• ControlFLASH Plus: Version 1 and later
• FactoryTalk Asset Centre: Version 9 and later
• FactoryTalk Linx CommDTM: Version 1 and later
• Studio 5000 Launcher: Version 31 and later
• Studio 5000 Logix Designer software: Version 32 and prior

Remediation

Install update from vendor's website.

References

• https://ics-cert.us-cert.gov/advisories/icsa-20-163-02