Vulnerability identifier: #VU46069

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: N/A

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
extra-ffmpeg
Web applications / Modules and components for CMS

Vendor: nodef

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to insecure command formatting in the "os" parameter in "child_process.exec" function. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

extra-ffmpeg: 0.0.1 - 4.0.6

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External links
http://snyk.io/vuln/SNYK-JS-EXTRAFFMPEG-607911
http://github.com/nodef/extra-ffmpeg/commit/e39f999494209c042b39cd74edc44758ff29172b
http://hackerone.com/reports/863944

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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.