An Improper Restriction Of Operations Within The Bounds Of A Memory Buffer issue was discovered in Advantech WebAccess versions prior to V8.220170817. Researchers have identified multiple vulnerabilities that allow invalid locations to be referenced for the memory buffer, which may allow an attacker to execute arbitrary code or cause the system to crash.

Unrestricted file upload vulnerability in the uploadImageCommon function in the UploadAjaxAction script in the WebAccess Dashboard Viewer in Advantech WebAccess before 8.1 allows remote attackers to write to files of arbitrary types via unspecified vectors.

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

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

A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.

A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.

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, several untrusted pointer dereference vulnerabilities have been identified, which may allow an attacker to execute arbitrary code.

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 TFTP application has unrestricted file uploads to the web application without authorization, which may allow an attacker to execute arbitrary code.

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 heap-based buffer overflow vulnerability has been identified, which may allow an attacker to execute arbitrary code.

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, several stack-based buffer overflow vulnerabilities have been identified, which may allow an attacker to execute arbitrary code.

A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to 8.3. There are multiple instances of a vulnerability that allows too much data to be written to a location on the stack.

A SQL Injection issue was discovered in WebAccess versions prior to 8.3. WebAccess does not properly sanitize its inputs for SQL commands.

An issue was discovered in Advantech WebAccess Version 8.1. To be able to exploit the SQL injection vulnerability, an attacker must supply malformed input to the WebAccess software. Successful attack could result in administrative access to the application and its data files.

An Improper Authentication issue was discovered in Advantech WebAccess versions prior to V8.220170817. Specially crafted requests allow a possible authentication bypass that could allow remote code execution.

A stack-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.220170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.

The VBWinExec function in Node\AspVBObj.dll in Advantech WebAccess 8.3.0 allows remote attackers to execute arbitrary OS commands via a single argument (aka the command parameter).

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this functionality to execute code under the context of Administrator.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this functionality to execute code under the context of Administrator.

An issue was discovered in Advantech WebAccess Version 8.1. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access pages unrestricted (AUTHENTICATION BYPASS).

Advantech WebAccess 8.3.2 and below is vulnerable to a stack buffer overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability by sending a crafted HTTP request to broadweb/system/opcImg.asp.

An Externally Controlled Format String issue was discovered in Advantech WebAccess versions prior to V8.220170817. String format specifiers based on user provided input are not properly validated, which could allow an attacker to execute arbitrary code.

A heap-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.220170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to the heap-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.

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, an improper privilege management vulnerability may allow an authenticated user to modify files when read access should only be given to the user.

Advantech WebAccess 8.3.1 and earlier has an improper privilege management vulnerability, which may allow an attacker to access those files and perform actions at a system administrator level.

An Incorrect Privilege Assignment issue was discovered in Advantech WebAccess versions prior to V8.220170817. A built-in user account has been granted a sensitive privilege that may allow a user to elevate to administrative privileges.

An Incorrect Permission Assignment for Critical Resource issue was discovered in Advantech WebAccess versions prior to V8.220170817. Multiple files and folders with ACLs that affect other users are allowed to be modified by non-administrator accounts.

An Uncontrolled Search Path Element issue was discovered in Advantech WebAccess versions prior to V8.220170817. A maliciously crafted dll file placed earlier in the search path may allow an attacker to execute code within the context of the application.

An Untrusted Pointer Dereference issue was discovered in Advantech WebAccess versions prior to V8.220170817. A remote attacker is able to execute code to dereference a pointer within the program causing the application to become unavailable.

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 disclose sensitive information on the target.

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, an external control of file name or path vulnerability has been identified, which may allow an attacker to delete files.