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Full vulnerability report · 2023
CVE-2023-3775High confidence

Vault Enterprise's Sentinel RGP Policies Allowed For Cross-Namespace Denial of Service

HashiCorp · Vault Enterprise

4.2MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2023-3775 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityhashicorp/vault: vault enterprise’s sentinel RGP policies allowed for cross-namespace denial of service
4 fixed

The vendor explicitly identifies these products or versions as containing the fix.

  • openshift4/ose-installer-rhel9@sha256:1f7a5d789ae097852e2e9a94582d37f4f911b21cf6269dfae66de6e7285bb896_amd64 as a component of Red Hat OpenShift Container Platform 4.17
  • openshift4/ose-installer-rhel9@sha256:3366ddf0c4bb69b5afcc24a0ade25508207067abb94ffad7873f8426baccb558_ppc64le as a component of Red Hat OpenShift Container Platform 4.17
  • openshift4/ose-installer-rhel9@sha256:8e65abf214ba3acd5466afb834a4de48a487cd4228118e4b31feef830794c623_s390x as a component of Red Hat OpenShift Container Platform 4.17
  • openshift4/ose-installer-rhel9@sha256:db779d0f41937fb35fee640685ce2b6a4e06ff87cfae58c6cd626bbe2cd77c42_arm64 as a component of Red Hat OpenShift Container Platform 4.17
Summary
A flaw was found in the Vault Enterprise. A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in a denial of service.
Remediation
For OpenShift Container Platform 4.17 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.17/release_notes/ocp-4-17-release-notes.html You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags. The sha values for the release are (For x86_64 architecture) The image digest is sha256:fbad931c725b2e5b937b295b58345334322bdabb0b67da1c800a53686d7397da (For s390x architecture) The image digest is sha256:9054f1987c9a0128374f2e7fa91a0b9d074d9665ef48758e6f29a89c14edd8f6 (For ppc64le architecture) The image digest is sha256:8a457e302eb66d06d17cb5cba491077b92a623217e05d486740969974b2aaef8 (For aarch64 architecture) The image digest is sha256:c9c31f9120f1049b88b282be4589d1da504ee436dfa51487349d08fecd29dd1e All OpenShift Container Platform 4.17 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.17/updating/updating_a_cluster/updating-cluster-cli.html
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-44408

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in denial of service. Fixed in Vault Enterprise 1.15.0, 1.14.4, 1.13.8.

What

A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in denial of service. Fixed in Vault Enterprise 1.15.0, 1.14.4, 1.13.8.

Why

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

What

A Vault Enterprise Sentinel Role Governing Policy created by an operator to restrict access to resources in one namespace can be applied to requests outside in another non-descendant namespace, potentially resulting in denial of service. Fixed in Vault Enterprise 1.15.0, 1.14.4, 1.13.8.

Why

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Incorrect Privilege Assignment → disrupt the affected service
Attack surface
Network
Privileges required
High: elevated access is required
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-266 ↗

CWE-266: Incorrect Privilege Assignment. A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkDenial of serviceCWE-266
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-2513Hashicorp Vault: Mehrere Schwachstellen

Ein entfernter authentifizierter Angreifer kann mehrere Schwachstellen in Hashicorp Vault ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder Sicherheitsmaßnahmen zu umgehen.

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
1.14.0 < 1.14.4; 1.13.0 < 1.13.8; 0.11.0 < 1.13.0
Fixed
openshift4/ose-installer-rhel9@sha256:1f7a5d789ae097852e2e9a94582d37f4f911b21cf6269dfae66de6e7285bb896_amd64 as a component of Red Hat OpenShift Container Platform 4.17; openshift4/ose-installer-rhel9@sha256:3366ddf0c4bb69b5afcc24a0ade25508207067abb94ffad7873f8426baccb558_ppc64le as a component of Red Hat OpenShift Container Platform 4.17; openshift4/ose-installer-rhel9@sha256:8e65abf214ba3acd5466afb834a4de48a487cd4228118e4b31feef830794c623_s390x as a component of Red Hat OpenShift Container Platform 4.17; openshift4/ose-installer-rhel9@sha256:db779d0f41937fb35fee640685ce2b6a4e06ff87cfae58c6cd626bbe2cd77c42_arm64 as a component of Red Hat OpenShift Container Platform 4.17
Action
For OpenShift Container Platform 4.17 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.17/release_notes/ocp-4-17-release-notes.html You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags. The sha values for the release are (For x86_64 architecture) The image digest is sha256:fbad931c725b2e5b937b295b58345334322bdabb0b67da1c800a53686d7397da (For s390x architecture) The image digest is sha256:9054f1987c9a0128374f2e7fa91a0b9d074d9665ef48758e6f29a89c14edd8f6 (For ppc64le architecture) The image digest is sha256:8a457e302eb66d06d17cb5cba491077b92a623217e05d486740969974b2aaef8 (For aarch64 architecture) The image digest is sha256:c9c31f9120f1049b88b282be4589d1da504ee436dfa51487349d08fecd29dd1e All OpenShift Container Platform 4.17 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.17/updating/updating_a_cluster/updating-cluster-cli.html
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 28 Sept 2023 · Last source change 26 Sept 2024, 21:50 UTC · CWE-266 · Incorrect Privilege Assignment

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-44408
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2023-44408↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-3775 · cve.blacktree.nl