A vulnerability was found in KB Login Authentication Script 1.1 and classified as critical. Affected by this issue is some unknown processing. The manipulation of the argument username/password with the input value 'or''=' leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The weakness was published 01/26/2017 by Ihsan Sencan as EDB-ID 41167 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability is handled as CVE-2017-20127. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1505.

A public exploit has been developed by Ihsan Sencan and been published immediately after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept.

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

The vulnerability is also documented in the vulnerability database at Exploit-DB (41167). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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• KB Login Authentication Script

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• 1.1

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