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Severity
Medium
Analysis Summary
CVE-2020-25176
Some commands used by the ISaGRAF eXchange Layer (IXL) protocol perform various file operations in the file system. Since the parameter pointing to the file name is not checked for reserved characters, it is possible for a remote, unauthenticated attacker to traverse an application’s directory, which could lead to remote code execution.
CVE-2020-25184
ISaGRAF Runtime stores the password in plaintext in a file that is in the same directory as the executable file. ISaGRAF Runtime reads the file and saves the data in a variable without any additional modification. A local, unauthenticated attacker could compromise the user passwords, resulting in information disclosure.
CVE-2020-25178
ISaGRAF Workbench communicates with ISaGRAF Runtime using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.
CVE-2020-25182
ISaGRAF Runtime searches for and loads DLLs as dynamic libraries. Uncontrolled loading of dynamic libraries could allow a local, unauthenticated attacker to execute arbitrary code. This vulnerability only affects ISaGRAF Runtime when running on Microsoft Windows systems.
CVE-2020-25180
ISaGRAF Runtime includes the functionality of setting a password that is required to execute privileged commands. The password value passed to ISaGRAF Runtime is the result of encryption performed with a fixed key value using the Tiny Encryption Algorithm (TEA) on an entered or saved password. A remote, unauthenticated attacker could pass their own encrypted password to the ISaGRAF 5 Runtime, which may result in information disclosure on the device.
Impact
- Remote Code Execution
- Information Disclosure
- Denial of Service
Affected Vendors
Rockwell Automation
Affected Products
AADvance Controller version 1.40 and earlier
Micro800 family all versions
ISaGRAF Free Runtime in ISaGRAF6 Workbench Version 6.6.8 and earlier
Remediation
Refer to vendor advisory for the complete list of affected products and their respective patches at https://us-cert.cisa.gov/ics/advisories/icsa-20-280-01