Vulnerability · Published Jun 6, 2022 · Assigned by Carrier
CVE-2022-31479Remote Code Execution via command injection of the hostname
Critical 9.6
In plain English
A critical-severity security flaw in EP4502 from HID Mercury. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities).
Official description
An unauthenticated attacker can update the hostname with a specially crafted name that will allow for shell commands to be executed during the core collection process. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.302 for the LP series and 1.296 for the EP series. An attacker with this level of access on the device can monitor all communications sent to and from this device, modify onboard relays, change configuration files, or cause the device to become unstable. The injected commands only get executed during start up or when unsafe calls regarding the hostname are used. This allows the attacker to gain remote access to the device and can make their persistence permanent by modifying the filesystem.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| LenelS2 | LNL-X2210 | ALL – before 1.302 |
| LenelS2 | LNL-X2220 | ALL – before 1.302 |
| LenelS2 | LNL-X3300 | ALL – before 1.302 |
| LenelS2 | LNL-X4420 | ALL – before 1.302 |
| LenelS2 | LNL-4420 | ALL – before 1.296 |
| LenelS2 | S2-LP-1501 | ALL – before 1.302 |
| LenelS2 | S2-LP-1502 | ALL – before 1.302 |
| LenelS2 | S2-LP-2500 | ALL – before 1.302 |
| LenelS2 | S2-LP-4502 | ALL – before 1.302 |
| HID Mercury | LP1501 | ALL – before 1.302 |
| HID Mercury | LP1502 | ALL – before 1.302 |
| HID Mercury | LP2500 | ALL – before 1.302 |
| HID Mercury | LP4502 | ALL – before 1.302 |
| HID Mercury | EP4502 | ALL – before 1.296 |
Weakness: CWE-693 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H