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Vulnerability · Published Jun 6, 2022 · Assigned by Carrier

CVE-2022-31483Arbitrary file write via authenticated OSDP file upload

Critical 9.1

In plain English

A critical-severity path traversal 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 1.8% (higher than 79% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)1.8%top 21.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An authenticated attacker can upload a file with a filename including “..” and “/” to achieve the ability to upload the desired file anywhere on the filesystem. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.271. This allows a malicious actor to overwrite sensitive system files and install a startup service to gain remote access to the underlaying Linux operating system with root privileges.

Affected products (as reported)

VendorProductVersions
LenelS2 LNL-X2210 ALL – before 1.271
LenelS2 LNL-X2220 ALL – before 1.271
LenelS2 LNL-X3300 ALL – before 1.271
LenelS2 LNL-X4420 ALL – before 1.271
LenelS2 LNL-4420 ALL – before 1.271
LenelS2 S2-LP-1501 ALL – before 1.271
LenelS2 S2-LP-1502 ALL – before 1.271
LenelS2 S2-LP-2500 ALL – before 1.271
LenelS2 S2-LP-4502 ALL – before 1.271
HID Mercury LP1501 ALL – before 1.271
HID Mercury LP1502 ALL – before 1.271
HID Mercury LP2500 ALL – before 1.271
HID Mercury LP4502 ALL – before 1.271
HID Mercury EP4502 ALL – before 1.271

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References