CVE-2024-0769mediumunder attackCWE-22

CVE-2024-0769: medium-severity vulnerability in D-Link DIR-859

D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal

Published · Updated

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85Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 5.3epss 83%
from disclosure to weaponsame day
Published on NVDJan 21
1st PoCJan 20
CISA KEV+521d
Action required by CISAfederal deadline: 2025-07-16

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

D-Link DIR-859 routers allow attackers to access files outside the intended directory through a specially crafted web request, potentially exposing sensitive configuration files. This happens because the device doesn't properly validate file paths in the hedwig.cgi component.

Technical detail

Path traversal vulnerability in D-Link DIR-859 1.06B01 hedwig.cgi HTTP POST handler via unsanitized 'service' parameter allowing directory traversal sequences (../../../../). Remote unauthenticated attack vector enables unauthorized access to arbitrary files on the device filesystem, including sensitive configuration files like DHCPS6.BRIDGE-1.xml. Product is end-of-life and unsupported.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DIR-859 1.06B01. It has been rated as critical. Affected by this issue is some unknown functionality of the file /hedwig.cgi of the component HTTP POST Request Handler. The manipulation of the argument service with the input ../../../../htdocs/webinc/getcfg/DHCPS6.BRIDGE-1.xml leads to path traversal. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-251666 is the identifier assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
D-Link · DIR-859
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