Vulnerability identifier: #VU45676

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-17367

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
firejail
Other software / Other software solutions

Vendor: firejail.wordpress.com

Description

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

The vulnerability exists due to application does not honor the -- end-of-options indicator after the --output option. 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 updates from vendor's website.

Vulnerable software versions

firejail: 0.9.30 - 0.9.62

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External links
http://github.com/netblue30/firejail
http://www.debian.org/security/2020/dsa-4742
http://www.debian.org/security/2020/dsa-4743

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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.