Siemens SCALANCE S602 up to 3.0 Configuration Web Server cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Siemens SCALANCE S602, SCALANCE S612, SCALANCE S623 and SCALANCE S627-2M up to 3.0. Affected by this issue is some unknown functionality of the component Configuration Web Server. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2019-6585. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Siemens SCALANCE S602, SCALANCE S612, SCALANCE S623 and SCALANCE S627-2M up to 3.0. This issue affects an unknown functionality of the component Configuration Web Server. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity. The summary by CVE is:

A vulnerability has been identified in SCALANCE S602 (All versions >= V3.0), SCALANCE S612 (All versions >= V3.0), SCALANCE S623 (All versions >= V3.0), SCALANCE S627-2M (All versions >= V3.0). The integrated configuration web server of the affected devices 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 vendor has confirmed the vulnerability and provides mitigations to resolve it.

The weakness was shared 03/10/2020. The identification of this vulnerability is CVE-2019-6585 since 01/22/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/11/2020). MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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

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Productinfo

Vendor

• Siemens

Name

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

Version

• 3.0

License

• commercial

Website

• Vendor: https://www.siemens.com/

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