CyberSecBulletin
CVE-2022-31484NVD status: Modified

LNL-X2210: Direct Request

Published Updated By the CyberSecBulletin desk

CVE-2022-31484 is a high-severity direct request vulnerability in LNL-X2210 from LenelS2, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 1.29 as the first without the flaw, so updating LNL-X2210 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.06% chance of exploitation within 30 days, higher than 65% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update LNL-X2210 to 1.29 or a later version.
  2. Update LNL-X2220 to 1.29 or a later version.
  3. Update LNL-X3300 to 1.29 or a later version.
  4. Read the advisory on corporate.carrier.com for workarounds and exact fixed builds.
  5. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
LenelS2LNL-X2210ALL up to, but not including, 1.291.29
LenelS2LNL-X2220ALL up to, but not including, 1.291.29
LenelS2LNL-X3300ALL up to, but not including, 1.291.29
LenelS2LNL-X4420ALL up to, but not including, 1.291.29
LenelS2LNL-4420ALL up to, but not including, 1.291.29
LenelS2S2-LP-1501ALL up to, but not including, 1.291.29
LenelS2S2-LP-1502ALL up to, but not including, 1.291.29
LenelS2S2-LP-2500ALL up to, but not including, 1.291.29
LenelS2S2-LP-4502ALL up to, but not including, 1.291.29
HID MercuryLP1501ALL up to, but not including, 1.291.29
HID MercuryLP1502ALL up to, but not including, 1.291.29
HID MercuryLP2500ALL up to, but not including, 1.291.29
HID MercuryLP4502ALL up to, but not including, 1.291.29
HID MercuryEP4502ALL up to, but not including, 1.291.29
HidglobalLp1501 Firmwarebefore 1.291.29
HidglobalLp1502 Firmwarebefore 1.291.29
HidglobalLp2500 Firmwarebefore 1.291.29
HidglobalLp4502 Firmwarebefore 1.291.29
HidglobalEp4502 Firmwarebefore 1.291.29
CarrierLenels2 Lnl-4420 Firmwarebefore 1.291.29
CarrierLenels2 Lnl-x2210 Firmwarebefore 1.291.29
CarrierLenels2 Lnl-x2220 Firmwarebefore 1.291.29
CarrierLenels2 Lnl-x3300 Firmwarebefore 1.291.29
CarrierLenels2 Lnl-x4420 Firmwarebefore 1.291.29
CarrierLenels2 S2-lp-1501 Firmwarebefore 1.291.29

Version data comes from the organisation that assigned the CVE; 3 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (carrier.com)
CVSS 3.17.5HighNVD
CVSS 2.05.0MediumNVD

Official description

An unauthenticated attacker can send a specially crafted network packet to delete a user from 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. The impact of this vulnerability is that an unauthenticated attacker could restrict access to the web interface to legitimate users and potentially requiring them to use the default user dip switch procedure to gain access back.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Direct Request

The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files.

How developers prevent this class of flaw

  • Apply appropriate access control authorizations for each access to all restricted URLs, scripts or files.
  • Consider using MVC based frameworks such as Struts.

More Direct Request vulnerabilities (CWE-425)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in LNL-X2210

All LNL-X2210 vulnerabilities

Recent Direct Request vulnerabilities

Spotted an error? Tell us.