Where
AND
-Infinity
0
Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess versions 9.02 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Remedy

Advantech has released Version 9.1.1 to address the stack-based buffer overflow vulnerability.
First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.

Remedy

In order to address the heap-based buffer overflow vulnerability, Advantech recommends users directly add the remote access code to avoid being attacked by unknown requests. This is the remote access code established during installation of the Advantech WebAccess SCADA software (SCADA node, project node, or OPC Service) on the OPC Server computer. The access code you enter here must match the remote access code established during installation on the OPC Server. This prevents unauthorized users from accessing the OPC Server data using the Advantech WebAccess SCADA OPC Service. If you have forgotten the remote access code using during software installation on the OPC Server node, you have two options: Re-install the Advantech WebAccess SCADA software on the OPC Server node to change it and edit it to match in your database. Edit the BWSERVER.INI file on the OPC Server node and edit it to match in your database using UPDATE.
First published (updated )
Severity
9.8
Input Validation, Buffer Overflow
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

1 / 2
First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

WebAccess Node Version 8.4.4 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.

First published (updated )
Severity
9.8
Buffer Overflow
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple stack-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.

1 / 9
First published (updated )
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Severity
9.8
Buffer Overflow, Integer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple heap-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.

1 / 7
First published (updated )
Severity
9.8
Path Traversal
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple relative path traversal vulnerabilities exist that may allow a low privilege user to overwrite files outside the application’s control.

1 / 2
First published (updated )
Severity
9.8
Path Traversal
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple relative path traversal vulnerabilities exist that may allow a low privilege user to overwrite files outside the application’s control.

1 / 4
First published (updated )
Severity
9.8
Out-of-bounds Read
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that could allow an attacker to inject specially crafted input into memory where it can be executed.

1 / 2
First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess before 8.4.3 allows unauthenticated remote attackers to execute arbitrary code or cause a denial of service (memory corruption) due to a stack-based buffer overflow when handling IOCTL 70533 RPC messages.

First published (updated )
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Severity
9.8
Code Injection
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In WebAccess versions 8.4.1 and prior, an exploit executed over the network may cause improper control of generation of code, which may allow remote code execution, data exfiltration, or cause a system crash.

First published (updated )
Severity
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In WebAccess, versions 8.4.1 and prior, an improper authorization vulnerability may allow an attacker to disclose sensitive information, cause improper control of generation of code, which may allow remote code execution or cause a system crash.

First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.1 allows a remote, unauthenticated attacker to execute arbitrary code via a crafted IOCTL 70603 RPC message.

First published (updated )
Severity
9.8
Buffer Overflow
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In WebAccess/SCADA Versions 8.3.5 and prior, multiple untrusted pointer dereference vulnerabilities may allow a remote attacker to execute arbitrary code.

1 / 18
First published (updated )
Severity
9.8
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

In WebAccess/SCADA Versions 8.3.5 and prior, multiple out-of-bounds write vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution.

1 / 3
First published (updated )
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Severity
9.8
Buffer Overflow
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In WebAccess/SCADA Versions 8.3.5 and prior, multiple heap-based buffer overflow vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution. Note: A different vulnerability than CVE-2019-10991.

1 / 3
First published (updated )
Severity
9.8
Buffer Overflow
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In WebAccess/SCADA, Versions 8.3.5 and prior, multiple stack-based buffer overflow vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution.

1 / 8
First published (updated )
Severity
9.1
Path Traversal
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

In WebAccess/SCADA, Versions 8.3.5 and prior, a path traversal vulnerability is caused by a lack of proper validation of a user-supplied path prior to use in file operations. An attacker can leverage this vulnerability to delete files while posing as an administrator.

1 / 2
First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.0 allows a remote, unauthenticated attacker to execute arbitrary code by sending a crafted IOCTL 81024 RPC call.

First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.0 allows a remote, unauthenticated attacker to execute arbitrary code by sending a crafted IOCTL 10012 RPC call.

First published (updated )
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Severity
9.8
Malicious File Upload
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess 8.3.4 is vulnerable to file upload attacks via unauthenticated RPC call. An unauthenticated, remote attacker can use this vulnerability to execute arbitrary code.

First published (updated )
Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.

1 / 2
First published (updated )
Severity
9.8
OS Command Injection, Command Injection
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple command injection vulnerabilities, caused by a lack of proper validation of user-supplied data, may allow remote code execution.

First published (updated )
Severity
9.3
Buffer Overflow
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

WebAccess Versions 8.3.2 and prior. The application fails to properly validate the length of user-supplied data, causing a buffer overflow condition that allows for arbitrary remote code execution.

First published (updated )
Severity
9.8
Path Traversal
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess 8.3.1 and earlier has a path traversal vulnerability which may allow an attacker to execute arbitrary code.

First published (updated )
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Severity
9.8
Buffer Overflow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advantech WebAccess 8.3.1 and earlier has several stack-based buffer overflow vulnerabilities that have been identified, which may allow an attacker to execute arbitrary code.

First published (updated )
Severity
9.8
Path Traversal
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In Advantech WebAccess versions V8.220170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, a path transversal vulnerability has been identified, which may allow an attacker to execute arbitrary code.

First published (updated )
Severity
10
Buffer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Multiple heap-based buffer overflows in Advantech WebAccess before 8.1 allow remote attackers to execute arbitrary code via unspecified vectors.

First published (updated )
Severity
9.3
Buffer Overflow, Race Condition
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Race condition in Advantech WebAccess before 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted request.

First published (updated )
Severity
10
Buffer Overflow, Integer Overflow
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Integer overflow in the Kernel service in Advantech WebAccess before 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted RPC request.

First published (updated )
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