Summaryinfo

A vulnerability was found in OSNEXUS QuantaStor up to 4.3.0. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component Error Message Handler. Performing a manipulation results in information disclosure (User). This vulnerability is identified as CVE-2017-9978. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in OSNEXUS QuantaStor up to 4.3.0. This affects an unknown code block of the component Error Message Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (User). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, a flaw was found with the error message sent as a response for users that don't exist on the system. An attacker could leverage this information to fine-tune and enumerate valid accounts on the system by searching for common usernames.

The bug was discovered 08/12/2017. The weakness was released 08/28/2017 as EDB-ID 42517 as not defined exploit (Exploit-DB). It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2017-9978 since 06/26/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. The exploit is shared for download 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). Entry connected to this vulnerability is available at VDB-105832. Statistical analysis made it clear that VulDB provides the best quality 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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