Deserialization of Untrusted Data in misp-project MISP

1) Deserialization of Untrusted Data

EUVDB-ID: #VU35825

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-12868

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

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

External links

http://github.com/MISP/MISP/commit/c42c5fe92783dd306b7600db1f6a25324445b40c

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.