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CVE-2022-31481— Remote Code Execution via buffer overflow in firmware update process

Quick assessment

Affected
LenelS2 LNL-X2210
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Carrier LenelS2 HID Mercury access panels是美国Carrier公司的一个控制器面板。 Carrier LenelS2 HID Mercury access panels 存在安全漏洞，该漏洞源于边界错误。远程攻击者可以发送特制的更新文件，触发内存损坏并在目标系统上执行任意代码。

CVSS 10.0 · Critical EPSS 1.54% · P73

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2022-31481

Vulnerability Information
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Vulnerability Title
Remote Code Execution via buffer overflow in firmware update process
Source: CVE Program / CVE List V5
Vulnerability Description
An unauthenticated attacker can send a specially crafted update file to the device that can overflow a buffer. 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. The overflowed data can allow the attacker to manipulate the “normal” code execution to that of their choosing. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Carrier LenelS2 HID Mercury access panels 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Carrier LenelS2 HID Mercury access panels是美国Carrier公司的一个控制器面板。 Carrier LenelS2 HID Mercury access panels 存在安全漏洞，该漏洞源于边界错误。远程攻击者可以发送特制的更新文件，触发内存损坏并在目标系统上执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
LenelS2 LNL-X2210 ALL ~ 1.302 -
LenelS2 LNL-X2220 ALL ~ 1.302 -
LenelS2 LNL-X3300 ALL ~ 1.302 -
LenelS2 LNL-X4420 ALL ~ 1.302 -
LenelS2 LNL-4420 ALL ~ 1.296 -
LenelS2 S2-LP-1501 ALL ~ 1.302 -
LenelS2 S2-LP-1502 ALL ~ 1.302 -
LenelS2 S2-LP-2500 ALL ~ 1.302 -
LenelS2 S2-LP-4502 ALL ~ 1.302 -
HID Mercury LP1501 ALL ~ 1.302 -
HID Mercury LP1502 ALL ~ 1.302 -
HID Mercury LP2500 ALL ~ 1.302 -
HID Mercury LP4502 ALL ~ 1.302 -
HID Mercury EP4502 ALL ~ 1.296 -

II. Public POCs for CVE-2022-31481

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III. Intelligence Information for CVE-2022-31481

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Vendor Advisories for CVE-2022-31481 (1)

Same Patch Batch · LenelS2 · 2022-06-06 · 8 CVEs total

CVE-2022-31479 9.6 CRITICAL Remote Code Execution via command injection of the hostname
CVE-2022-31483 9.1 CRITICAL Arbitrary file write via authenticated OSDP file upload
CVE-2022-31486 8.8 HIGH Command injection via Advanced Networking route add functionality
CVE-2022-31480 7.5 HIGH Unauthenticated Firmware Upload and Arbitrary Reboot
CVE-2022-31482 7.5 HIGH Denial-of-Service via internal structure overflow
CVE-2022-31484 7.5 HIGH User Account Deletion Unauthenticated
CVE-2022-31485 5.3 MEDIUM Unauthenticated homepage note modification

IV. Related Vulnerabilities

Same product: LNL-X2210
Same vendor: LenelS2
Same weakness: CWE-120

V. Comments for CVE-2022-31481

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