#VU35825 Deserialization of Untrusted Data in MISP - CVE-2019-12868

Vulnerability identifier: #VU35825

Vulnerability risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-12868

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MISP
Web applications / CMS

Vendor: misp-project.org

Description

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

app/Model/Server.php in MISP 2.4.109 allows remote command execution by a super administrator because the PHP file_exists function is used with user-controlled entries, and phar:// URLs trigger deserialization.

Mitigation
Install update from vendor's website.

Vulnerable software versions

MISP: 2.4.109

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External links
https://github.com/MISP/MISP/commit/c42c5fe92783dd306b7600db1f6a25324445b40c

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.