CyberSecBulletin
CVE-2022-28638NVD status: Modified

HPE Integrated Lights-Out 5 (iLO 5): Exposure of Sensitive Information to an Unauthorized Actor

Published Updated By the CyberSecBulletin desk

CVE-2022-28638 is a high-severity exposure of sensitive information to an unauthorized actor vulnerability in HPE Integrated Lights-Out 5 (iLO 5), with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected HPE Integrated Lights-Out 5 (iLO 5) versions: Prior to 2.72. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.27% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Integrated Lights-out 5 Firmware to 2.72 or a later version.
  2. Read the advisory on support.hpe.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
HPE Integrated Lights-Out 5 (iLO 5)HPE Integrated Lights-Out 5 (iLO 5)Prior to 2.72Not stated
Hewlett Packard EnterpriseIntegrated Lights-out 5 Firmwarebefore 2.722.72

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
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.8HighNVD
CVSS 3.17.8HighCISA (ADP)

Official description

An isolated local disclosure of information and potential isolated local arbitrary code execution vulnerability that could potentially lead to a loss of confidentiality, integrity, and availability were discovered in HPE Integrated Lights-Out 5 (iLO 5) in Version: 2.71. Hewlett Packard Enterprise has provided updated firmware for HPE Integrated Lights-Out 5 (iLO 5) that addresses these security vulnerabilities.

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

The underlying weakness: Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

How developers prevent this class of flaw

  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities (CWE-200)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in HPE Integrated Lights-Out 5 (iLO 5)

All HPE Integrated Lights-Out 5 (iLO 5) vulnerabilities

Recent Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities

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