Summaryinfo

A vulnerability was found in OSNEXUS QuantaStor up to 4.3.0. It has been declared as problematic. Affected by this issue is some unknown functionality of the component REST Call Handler. Executing a manipulation as part of Parameter can lead to cross site scripting. This vulnerability is tracked as CVE-2017-9979. The attack can be launched remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in OSNEXUS QuantaStor up to 4.3.0. This vulnerability affects some unknown processing of the component REST Call Handler. The manipulation as part of a Parameter 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. CVE summarizes:

On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, if the REST call invoked does not exist, an error will be triggered containing the invalid method previously invoked. The response sent to the user isn't sanitized in this case. An attacker can leverage this issue by including arbitrary HTML or JavaScript code as a parameter, aka XSS.

The bug was discovered 08/12/2017. The weakness was disclosed 08/28/2017 as EDB-ID 42517 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2017-9979 since 06/26/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (42517). The entry VDB-105831 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• OSNEXUS

Name

• QuantaStor

Version

• 4.0
• 4.1
• 4.2
• 4.3.0

CPE 2.3info

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CPE 2.2info

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