A vulnerability was found in Synology Note Station up to 1.1-0212. It has been declared as problematic. Affected by this vulnerability is an unknown code of the component Attachment Handler. The manipulation of the argument title/filename with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

Multiple cross-site scripting (XSS) vulnerabilities in Synology Note Station 1.1-0212 and earlier allow remote authenticated attackers to inject arbitrary web script or HTML via the (1) note title or (2) file name of attachments.

The bug was discovered 11/30/2015. The weakness was disclosed 06/30/2017 (Website). It is possible to read the advisory at synology.com. This vulnerability is known as CVE-2015-9103 since 06/29/2017. The attack can be launched remotely. A single authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. 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 578 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.

Productinfo

Vendor

• Synology

Name

• Note Station

Version

• 1.1-0212

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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