title: Improper Authorization Vulnerability in Milesight Network Video Recorder (NVR)
description: This vulnerability exists in Milesight 4K/H.265 Series NVR models (MS-Nxxxx-xxG, MS-Nxxxx-xxE, MS-Nxxxx-xxT, MS-Nxxxx-xxH and MS-Nxxxx-xxC), due to improper authorization at the Milesight NVR web-based management interface. A remote attacker could exploit this vulnerability by sending a specially crafted http requests on the targeted device.
Successful exploitation of this vulnerability could allow remote attacker to perform unauthorized activities on the targeted device.
problem types: CWE-285 Improper Authorization
affected:
{
defaultStatus: unaffected
product: NVR MS-Nxxxx-xxG
vendor: Milesight
versions:
lessThan: 77.9.0.18-r2, status: affected, version: 77.X, versionType: custom
}
{
defaultStatus: unaffected
product: NVR MS-Nxxxx-xxE
vendor: Milesight
versions:
lessThan: 75.9.0.18-r2, status: affected, version: 75.X, versionType: custom
}
{
defaultStatus: unaffected
product: NVR MS-Nxxxx-xxT
vendor: Milesight
versions:
lessThan: 72.9.0.18-r2, status: affected, version: 72.X, versionType: custom
}
{
defaultStatus: unaffected
product: NVR MS-Nxxxx-xxH
vendor: Milesight
versions:
lessThan: 71.9.0.18-r2, status: affected, version: 71.X, versionType: custom
}
{
defaultStatus: unaffected
product: NVR MS-Nxxxx-xxC
vendor: Milesight
versions:
lessThan: 73.9.0.18-r2, status: affected, version: 73.X, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: Update
Milesight NVR firmware to latest version
https://www.milesight.com/support/download/firmware https://www.milesight.com/support/download/firmware