#VU24475 Improper Resource Locking in Bitdefender BOX 2 - CVE-2019-17102

Vulnerability identifier: #VU24475

Vulnerability risk: High

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2019-17102

CWE-ID: CWE-413

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Bitdefender BOX 2
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Bitdefender

Description

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

The vulnerability exists in the recovery partition of Bitdefender BOX 2 due to the API method "/api/update_setup" does not perform firmware signature checks atomically. A remote attacker can send a series of HTTP requests to the device while in the bootstrap stage, cause race condition and execute arbitrary commands on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Bitdefender BOX 2: 2.0.1.91

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External links
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0918

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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.