A vulnerability was found in Advantech WebAccess HMI Designer up to 2.1.9.31 (SCADA Software). It has been rated as critical. This issue affects an unknown code block. The manipulation as part of a Project File leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Processing specially crafted project files lacking proper validation of user supplied data may cause a stack-based buffer overflow, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.

The weakness was presented 08/06/2020 (Website). The advisory is shared at us-cert.cisa.gov. The identification of this vulnerability is CVE-2020-16215 since 07/31/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 159350, 159351, 159352 and 159354 for similar entries.

Productinfo

Type

• SCADA Software

Vendor

• Advantech

Name

• WebAccess HMI Designer

Version

• 2.1.9.0
• 2.1.9.1
• 2.1.9.2
• 2.1.9.3
• 2.1.9.4
• 2.1.9.5
• 2.1.9.6
• 2.1.9.7
• 2.1.9.8
• 2.1.9.9
• 2.1.9.10
• 2.1.9.11
• 2.1.9.12
• 2.1.9.13
• 2.1.9.14
• 2.1.9.15
• 2.1.9.16
• 2.1.9.17
• 2.1.9.18
• 2.1.9.19
• 2.1.9.20
• 2.1.9.21
• 2.1.9.22
• 2.1.9.23
• 2.1.9.24
• 2.1.9.25
• 2.1.9.26
• 2.1.9.27
• 2.1.9.28
• 2.1.9.29
• 2.1.9.30
• 2.1.9.31

License

• commercial

CPE 2.3info

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CPE 2.2info

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