Bludit 3.9.2 Brute-Force Protection security.class.php X-Forwarded-For excessive authentication

Summaryinfo

A vulnerability has been found in Bludit 3.9.2 and classified as problematic. The impacted element is an unknown function of the file bl-kernel/security.class.php of the component Brute-Force Protection. The manipulation of the argument X-Forwarded-For as part of HTTP Header leads to excessive authentication. This vulnerability is referenced as CVE-2019-17240. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Bludit 3.9.2. This issue affects an unknown part of the file bl-kernel/security.class.php of the component Brute-Force Protection. The manipulation of the argument X-Forwarded-For as part of a HTTP Header leads to a excessive authentication vulnerability. Using CWE to declare the problem leads to CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. Impacted is confidentiality. The summary by CVE is:

bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.

The weakness was published 10/06/2019. The identification of this vulnerability is CVE-2019-17240 since 10/06/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1110.001 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:bl-kernel/security.class.php it is possible to find vulnerable targets with Google Hacking.

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 (48746). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Bludit

Version

• 3.9.2

Website

• Product: https://github.com/bludit/bludit/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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