CVE-2024-57046
HIGHCVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
A vulnerability in the Netgear DGN2200 router with firmware version v1.0.0.46 and earlier permits unauthorized individuals to bypass the authentication. When adding "?x=1.gif" to the the requested url, it will be recognized as passing the authentication.
Analysis
Netgear DGN2200 router firmware v1.0.0.46 and earlier contains an authentication bypass. By appending ?x=1.gif to any URL, the router's authentication check is fooled into treating the request as an image file, granting unauthenticated access to all management functions including configuration and firmware management.
Technical Context
The DGN2200's HTTP server uses a simplistic authentication check that exempts requests for image files. By appending ?x=1.gif to any management URL, the request is classified as an image access and bypasses the authentication requirement entirely. This grants access to the full management interface including password changes, firmware updates, and network configuration.
Affected Products
['Netgear DGN2200 firmware <= v1.0.0.46']
Remediation
Update firmware to a version beyond v1.0.0.46. Replace end-of-life routers. Disable remote management. Monitor network DNS settings for unauthorized changes.
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External POC / Exploit Code
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