Path traversal in BusyBox - CVE-2023-39810

Vulnerability identifier: #VU80392

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-39810

CWE-ID: CWE-22

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

BusyBox
openEuler
busybox-petitboot
busybox-help
busybox-debugsource
busybox-debuginfo
busybox

Install updates from vendor's website.

busybox-petitboot - addressed in versions 1.31.1-25, 1.34.1-25, 1.36.1-9
busybox-help - addressed in versions 1.31.1-25, 1.34.1-25, 1.36.1-9
busybox-debugsource - addressed in versions 1.31.1-25, 1.34.1-25, 1.36.1-9
busybox-debuginfo - addressed in versions 1.31.1-25, 1.34.1-25, 1.36.1-9
busybox - addressed in versions 1.31.1-25, 1.34.1-25, 1.36.1-9

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

• Path traversal in BusyBox CPIO
• openEuler 24.03 LTS update for busybox
• openEuler 24.03 LTS SP2 update for busybox
• openEuler 24.03 LTS SP1 update for busybox
• openEuler 22.03 LTS SP4 update for busybox
• openEuler 22.03 LTS SP3 update for busybox
• openEuler 20.03 LTS SP4 update for busybox