VulnerabilityModified

CVE-2024-23929

This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Pioneer DMH-WT7600NEX devices.

HIGH 7.3EPSS 0.49%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Pioneer DMH-WT7600NEX devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the telematics functionality. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.

CVSS 3.1: 7.3 HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS: 0.49% probability · 41th percentile
CISA KEV: Not listed
Weakness: CWE-863
Affected: pioneer/dmh-wt7600nex firmware
Source: ics-cert@hq.dhs.gov

References

https://jpn.pioneer/ja/car/dl/dmh-sz700_sf700/
https://www.zerodayinitiative.com/advisories/ZDI-24-1044/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.