OS Command Injection in misp-project MISP

1) OS Command Injection

EUVDB-ID: #VU31177

Risk: High

CVSSv4.0: 7.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2018-19908

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote authenticated user to execute arbitrary code.

An issue was discovered in MISP 2.4.9x before 2.4.99. In app/Model/Event.php (the STIX 1 import code), an unescaped filename string is used to construct a shell command. This vulnerability can be abused by a malicious authenticated user to execute arbitrary commands by tweaking the original filename of the STIX import.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MISP: 2.4.90 - 2.4.98

CPE2.3

• cpe:2.3:a:misp-project.org:misp:2.4.90:*:*:*:*:*:*:*
• cpe:2.3:a:misp-project.org:misp:2.4.91:*:*:*:*:*:*:*
• cpe:2.3:a:misp-project.org:misp:2.4.92:*:*:*:*:*:*:*

External links

https://github.com/MISP/MISP/commit/211ac0737281b65e7da160f0aac52f401a94e1a3
https://github.com/MISP/MISP/releases/tag/v2.4.99
https://www.exploit-db.com/exploits/46401/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.