Summaryinfo

A vulnerability classified as problematic has been found in Siemens SCALANCE S602, SCALANCE S612, SCALANCE S623 and SCALANCE S627-2M. Affected is an unknown function of the component Integrated Web Server. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2018-16555. It is possible to launch the attack remotely. There is no exploit available. It is recommended to upgrade the affected component. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Detailsinfo

A vulnerability was found in Siemens SCALANCE S602, SCALANCE S612, SCALANCE S623 and SCALANCE S627-2M (the affected version is unknown). It has been rated as problematic. This issue affects an unknown code of the component Integrated Web Server. The manipulation with an unknown input leads to a cross site scripting vulnerability. 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. The summary by CVE is:

A vulnerability has been identified in SCALANCE S602 (All versions < V4.0.1.1), SCALANCE S612 (All versions < V4.0.1.1), SCALANCE S623 (All versions < V4.0.1.1), SCALANCE S627-2M (All versions < V4.0.1.1). The integrated web server could allow Cross-Site Scripting (XSS) attacks if unsuspecting users are tricked into accessing a malicious link. User interaction is required for a successful exploitation. The user must be logged into the web interface in order for the exploitation to succeed. At the stage of publishing this security advisory no public exploitation is known.

The bug was discovered 11/13/2018. The weakness was presented 12/13/2018 (Website). It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2018-16555 since 09/06/2018. The attack may be initiated remotely. A simple authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 30 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105937†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Siemens

Name

• SCALANCE S602
• SCALANCE S612
• SCALANCE S623
• SCALANCE S627-2M

License

• commercial

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