A vulnerability, which was classified as problematic, has been found in Advantech WebAccess up to 8.3.2 (SCADA Software). Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability (Reflected). Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

Advantech WebAccess 8.3.2 and below is vulnerable to multiple reflected cross site scripting vulnerabilities. A remote unauthenticated attacker could potentially exploit this vulnerability by tricking a victim to supply malicious HTML or JavaScript code to WebAccess, which is then reflected back to the victim and executed by the web browser.

The bug was discovered 10/18/2018. The weakness was published 10/22/2018 (Website). The advisory is shared for download at tenable.com. This vulnerability is handled as CVE-2018-15703 since 08/22/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

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

Similar entry is available at 125841.

Productinfo

Type

• SCADA Software

Vendor

• Advantech

Name

• WebAccess

Version

• 8.3.0
• 8.3.1
• 8.3.2

License

• commercial

CPE 2.3info

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CPE 2.2info

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