A vulnerability, which was classified as critical, was found in Conarc iChannel (affected version unknown). This affects an unknown functionality in the library wc.dll. The manipulation as part of a Request leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Conarc iChannel allows remote attackers to obtain sensitive information, modify the configuration, or cause a denial of service (by deleting the configuration) via a wc.dll?wwMaint~EditConfig request (which reaches an older version of a West Wind Web Connection HTTP service).

The bug was discovered 12/19/2017. The weakness was released 12/19/2017 (Website). It is possible to read the advisory at information-paradox.net. This vulnerability is uniquely identified as CVE-2017-17759 since 12/19/2017. 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 and a public exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

It is possible to mitigate the weakness by firewalling .

The vulnerability is also documented in the vulnerability database at Exploit-DB (43377).

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• Conarc

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• iChannel

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