#VU47657 External Control of File Name or Path in F2fs.Fsck - CVE-2020-6105

Vulnerability identifier: #VU47657

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-6105

CWE-ID: CWE-73

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
F2fs.Fsck
Other software / Other software solutions

Vendor: F2fs-Tools

Description

The vulnerability allows a local user to delete arbitrary files.

The vulnerability exists due to application allows an attacker to control path of the files to delete in the multiple devices functionality. A local administrator can use a specially crafted f2fs filesystem and delete arbitrary files on the system, leading to arbitrary code execution.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

F2fs.Fsck: 1.13

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External links
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1047

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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