CyberSecBulletin
CVE-2023-50272NVD status: Modified

HPE Integrated Lights-out 5 (iLO 5), HPE…: Authentication Bypass Using an Alternate Path or Channel

Published Updated By the CyberSecBulletin desk

CVE-2023-50272 is a critical-severity authentication bypass using an alternate path or channel vulnerability in HPE Integrated Lights-out 5 (iLO 5), HPE Integrated Lights-out 6 (iLO 6), from Hewlett Packard Enterprise, 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 HPE Integrated Lights-out 5 (iLO 5), HPE Integrated Lights-out 6 (iLO 6), versions: iLO 5 - v2.63 through versions prior to v3.00; iLO 6 - v1.05 through versions prior to v1.55. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.61% chance of exploitation within 30 days, which is low compared with other CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of HPE Integrated Lights-out 5 (iLO 5), HPE Integrated Lights-out 6 (iLO 6), you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on support.hpe.com for workarounds and exact fixed builds.
  3. 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
Hewlett Packard EnterpriseHPE Integrated Lights-out 5 (iLO 5), HPE Integrated Lights-out 6 (iLO 6),iLO 5 - v2.63 through versions prior to v3.00; iLO 6 - v1.05 through versions prior to v1.55Not stated
Hewlett Packard EnterpriseIntegrated Lights-out 5 Firmware2.63 through 3.00Not stated
Hewlett Packard EnterpriseIntegrated Lights-out 6 Firmware1.05 through 1.55Not stated

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.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (hpe.com)
CVSS 3.19.8CriticalNVD

Official description

A potential security vulnerability has been identified in HPE Integrated Lights-Out 5 (iLO 5) and Integrated Lights-Out 6 (iLO 6). The vulnerability could be remotely exploited to allow authentication bypass.

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

The underlying weakness: Authentication Bypass Using an Alternate Path or Channel

The product requires authentication, but the product has an alternate path or channel that does not require authentication.

How developers prevent this class of flaw

  • Funnel all access through a single choke point to simplify how users can access a resource. For every access, perform a check to determine if the user has permissions to access the resource.

More Authentication Bypass Using an Alternate Path or Channel vulnerabilities (CWE-288)

Timeline

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

References

Recent Authentication Bypass Using an Alternate Path or Channel vulnerabilities

Spotted an error? Tell us.