title: ASUS RT-AX56U - Path Traversal
description: ASUS RT-AX56U’s update_json function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated LAN attacker can overwrite a system file by uploading another file with the same file name, which results in service disruption.
problem types: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
affected:
{
product: RT-AX56U
vendor: ASUS
versions:
status: affected, version: 3.0.0.4.386.45898
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
version: 3.1
]
solutions: Update ASUS RT-AX56U firmware version to 3.0.0.4.386.45934