Advantech WebAccess Command Injection
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Advantech | WebAccess | unaffected |
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Configuration 1 [-]
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No data.
No data available yet.
Vendor Solution
Advantech has created a new version (Version 7.2) that mitigates each of the vulnerabilities described above. Users may download this version from the following location at their web site: http://webaccess.advantech.com/downloads.php?item=software For additional information about WebAccess, please visit the following Advantech web site: http://webaccess.advantech.com/
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2014-0804 | The BWOCXRUN.BwocxrunCtrl.1 control contains a method named “CreateProcess.” This method contains validation to ensure an attacker cannot run arbitrary command lines. After validation, the values supplied in the HTML are passed to the Windows CreateProcessA API. The validation can be bypassed allowing for running arbitrary command lines. The command line can specify running remote files (example: UNC command line). A function exists at offset 100019B0 of bwocxrun.ocx. Inside this function, there are 3 calls to strstr to check the contents of the user specified command line. If “\setup.exe,” “\bwvbprt.exe,” or “\bwvbprtl.exe” are contained in the command line (strstr returns nonzero value), the command line passes validation and is then passed to CreateProcessA. |
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
This CVE is not in the KEV list.
Exploit prediction score: 2.5% (2.519% probability within 30 days)
Key SSVC decision points have not yet been added.
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The CreateProcess method in the BWOCXRUN.BwocxrunCtrl.1 ActiveX control in bwocxrun.ocx in Advantech WebAccess before 7.2 allows remote attackers to execute (1) setup.exe, (2) bwvbprt.exe, and (3) bwvbprtl.exe programs from arbitrary pathnames via a crafted argument, as demonstrated by a UNC share pathname. | The BWOCXRUN.BwocxrunCtrl.1 control contains a method named “CreateProcess.” This method contains validation to ensure an attacker cannot run arbitrary command lines. After validation, the values supplied in the HTML are passed to the Windows CreateProcessA API. The validation can be bypassed allowing for running arbitrary command lines. The command line can specify running remote files (example: UNC command line). A function exists at offset 100019B0 of bwocxrun.ocx. Inside this function, there are 3 calls to strstr to check the contents of the user specified command line. If “\setup.exe,” “\bwvbprt.exe,” or “\bwvbprtl.exe” are contained in the command line (strstr returns nonzero value), the command line passes validation and is then passed to CreateProcessA. |
| Title | Advantech WebAccess Command Injection | |
| Weaknesses | CWE-77 | |
| References |
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