CyberSecBulletin
CVE-2022-43939Exploited in the wildNVD status: Analyzed

Hitachi Vantara Pentaho BA Server Authorization Bypass

Published Updated By the CyberSecBulletin desk

CVE-2022-43939 is a critical-severity use of non-canonical URL paths for authorization decisions vulnerability in Pentaho Business Analytics Server from Hitachi Vantara, 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. The record lists versions 9.3.0.2, 9.4.0.1 as the first without the flaw, so updating Pentaho Business Analytics Server to one of those releases or later removes the exposure. CISA added it to the Known Exploited Vulnerabilities catalogue on March 3, 2025, which means attacks have been observed in the wild.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Update Pentaho Business Analytics Server to 9.3.0.2 or 9.4.0.1, whichever matches your release line, or a later version.
  2. Update Vantara Pentaho Business Analytics Server to 9.3.0.2 or a later version.
  3. CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  4. Read the advisory on support.pentaho.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
Hitachi VantaraPentaho Business Analytics Server1.0 up to, but not including, 9.3.0.2; 9.4.0.0 up to, but not including, 9.4.0.19.3.0.2, 9.4.0.1
HitachiVantara Pentaho Business Analytics Serverbefore 9.3.0.2; 9.4.0.09.3.0.2

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 3.18.6HighCNA (hitachivantara.com)
CVSS 3.19.8CriticalNVD

Official description

Hitachi Vantara Pentaho Business Analytics Server versions before 9.4.0.1 and 9.3.0.2, including 8.3.x contain security restrictions using non-canonical URLs which can be circumvented.

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

The underlying weakness: Use of Non-Canonical URL Paths for Authorization Decisions

The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical.

How developers prevent this class of flaw

  • Make access control policy based on path information in canonical form, with all alternate encodings rejected (which can be accomplished by a default deny rule). Consider very restrictive regular expressions to validate that the path is in the expected form. Reject all alternate path encodings that are not in the expected canonical form.

More Use of Non-Canonical URL Paths for Authorization Decisions vulnerabilities (CWE-647)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: partial).
  3. Added to CISA's Known Exploited Vulnerabilities catalogue.
  4. Deadline for US federal agencies to remediate, set by CISA.
  5. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in Pentaho Business Analytics Server

All Pentaho Business Analytics Server vulnerabilities

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