Path traversal in BusyBox CPIO



Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2023-39810
CWE-ID CWE-22
Exploitation vector Network
Public exploit N/A
Vulnerable software
 BusyBox
Universal components / Libraries / Software for developers

Vendor busybox.net

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Path traversal

EUVDB-ID: #VU80392

Risk: Medium

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-39810

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the cpio command. A remote attacker can trick the victim to open a specially crafted archive and overwrite arbitrary files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BusyBox: 1.33.0 - 1.33.2

CPE2.3 External links

http://www.pentagrid.ch/en/blog/busybox-cpio-directory-traversal-vulnerability/


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.



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