Login Request a demo
Critical severity · published Jun 6, 2022
CVE-2022-31481
An unauthenticated attacker can send a specially crafted update file to the device that can overflow a buffer
10.0
CVSS
1.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
Ep4502 Firmware · Hidglobal
before 1.296 · source: NVD
LL
Lenels2 Lnl-4420 Firmware · Carrier
before 1.296 · source: NVD
LL
Lenels2 Lnl-x2210 Firmware · Carrier
before 1.302 · source: NVD
LL
Lenels2 Lnl-x2220 Firmware · Carrier
before 1.302 · source: NVD
LL
Lenels2 Lnl-x3300 Firmware · Carrier
before 1.302 · source: NVD
LL
Lenels2 Lnl-x4420 Firmware · Carrier
before 1.302 · source: NVD
LS
Lenels2 S2-lp-1501 Firmware · Carrier
before 1.302 · source: NVD
LS
Lenels2 S2-lp-1502 Firmware · Carrier
before 1.302 · source: NVD
LS
Lenels2 S2-lp-2500 Firmware · Carrier
before 1.302 · source: NVD
LS
Lenels2 S2-lp-4502 Firmware · Carrier
before 1.302 · source: NVD
LF
Lp1501 Firmware · Hidglobal
before 1.302 · source: NVD
LF
Lp1502 Firmware · Hidglobal
before 1.302 · source: NVD
Affected product
LL
Lenels2 Lnl-4420 Firmware
Carrier
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-31481
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-31481
Vendor Advisory
https://www.corporate.carrier.com/product-security/advisories-resources/
More from Lenels2 Lnl-4420 Firmware
9.8
CVE-2022-31479
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
8.8
CVE-2022-31486
An authenticated attacker can send a specially crafted route to the “edit_route.cgi” binary and have it execute shell commands
8.8
CVE-2022-31483
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
7.5
CVE-2022-31484
An unauthenticated attacker can send a specially crafted network packet to delete a user from the web interface
7.5
CVE-2022-31482
An unauthenticated attacker can send a specially crafted unauthenticated HTTP request to the device that can overflow a buffer