CyberSecBulletin
CVE-2023-26301NVD status: Modified

HP LaserJet Pro: Missing Authorization

Published Updated By the CyberSecBulletin desk

CVE-2023-26301 is a critical-severity missing authorization vulnerability in HP LaserJet Pro from HP, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected HP LaserJet Pro versions: See HP Security Bulletin reference for affected versions.. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.83% chance of exploitation within 30 days, higher than 58% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update Color Laserjet Pro 4201-4203 4ra87f Firmware to 6.12.1.12-202306030312 or a later version.
  2. Update Color Laserjet Pro 4201-4203 4ra88f Firmware to 6.12.1.12-202306030312 or a later version.
  3. Update Color Laserjet Pro 4201-4203 4ra89a Firmware to 6.12.1.12-202306030312 or a later version.
  4. Read the advisory on support.hp.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
HPHP LaserJet ProSee HP Security Bulletin reference for affected versions.Not stated
HPColor Laserjet Pro 4201-4203 4ra87f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 4ra88f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 4ra89a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 5hh48a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 5hh51a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 5hh52a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 5hh53a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro 4201-4203 5hh59a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 4ra80f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 4ra81f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 4ra82f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 4ra83f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 4ra84f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 5hh64f Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 5hh65a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 5hh66a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 5hh67a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 5hh72a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312
HPColor Laserjet Pro Mfp 4301-4303 5hh73a Firmwarebefore 6.12.1.12-2023060303126.12.1.12-202306030312

Version data comes from the organisation that assigned the CVE. 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
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

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

Official description

Certain HP LaserJet Pro print products are potentially vulnerable to an Elevation of Privilege and/or Information Disclosure related to a lack of authentication with certain endpoints.

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

The underlying weakness: Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

How developers prevent this class of flaw

  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework and the OWASP ESAPI Access Control feature.

More Missing Authorization vulnerabilities (CWE-862)

Timeline

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

References

Other vulnerabilities in HP LaserJet Pro

All HP LaserJet Pro vulnerabilities

Recent Missing Authorization vulnerabilities

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