title: Unauthenticated homepage note modification
description: An unauthenticated attacker can send a specially crafted packets to update the “notes” section of the home page of the web interface. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.29.
problem types: CWE-425 Direct Request (Forced Browsing)
affected:
{
product: LNL-X2210
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LNL-X2220
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LNL-X3300
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LNL-X4420
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LNL-4420
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: S2-LP-1501
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: S2-LP-1502
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: S2-LP-2500
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: S2-LP-4502
vendor: LenelS2
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LP1501
vendor: HID Mercury
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LP1502
vendor: HID Mercury
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LP2500
vendor: HID Mercury
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: LP4502
vendor: HID Mercury
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
{
product: EP4502
vendor: HID Mercury
versions:
lessThan: 1.29, status: affected, version: ALL, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
version: 3.1
]
solutions: Update to the latest version of firmware
workarounds: Disable the controller's Web Server.
When the controller is configured to disable web access, you cannot remotely login into the controller’s web page.
1. Login to controller web pages
2. Go to “Users” Tab
3. Near bottom of the Users page, check option to “Disable Web Server”
4. Then select “Submit” at the bottom of the page
5. Then select “Apply Settings” tab
6. And on that page, select button “Apply Settings, Reboot”
The Controller will apply the new setting and reboot. Web login will be disabled until switch 1 is physically turned ON, on the controller.