Vulnerability identifier: #VU35191

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-17240

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Bludit
Web applications / CMS

Vendor: Bludit

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Bludit: 3.9.2

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External links
http://github.com/bludit/bludit/pull/1090
http://rastating.github.io/bludit-brute-force-mitigation-bypass/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.