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CVE Record

CVE-2023-4727: Ca: token authentication bypass vulnerability

A flaw was found in dogtag-pki and pki-core. The token authentication scheme can be bypassed with a LDAP injection. By passing the query string parameter sessionID=*, an attacker can authenticate with an existing session saved in the LDAP directory server, which may lead to escalation of privilege.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-4727 is an authentication bypass in Dogtag PKI / Red Hat pki-core certificate authority components. A malformed session identifier can abuse LDAP session lookup and authenticate as an existing saved session. For organizations using Red Hat Certificate System or Dogtag-based CA services, this could affect certificate authority trust operations and privileges.

Executive priority

Prioritize remediation for certificate authority infrastructure because compromise can affect identity, trust, and certificate issuance workflows. Treat as high priority for exposed or shared PKI services, while noting there is no sourced evidence of active exploitation in this bundle.

Technical view

The flaw is in the token authentication scheme for dogtag-pki / pki-core. LDAP injection in session lookup can allow authentication using an existing session stored in LDAP. Red Hat rates it High with CVSS 3.1 score 7.5, high complexity, no privileges required, and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is likely where affected Red Hat pki-core or redhat-pki:10 packages run CA services on listed RHEL 7, 8, 9, EUS, AUS, TUS, or E4S streams. Keycloak is marked unaffected in the provided data. RHEL 6 status is unknown and needs vendor confirmation.

Exploitation context

The bundle does not show CISA KEV listing or cited active exploitation. Exploitation appears to require access to the vulnerable CA service and an existing saved LDAP session. CVSS lists adjacent attack vector and high attack complexity, but no prior authentication or user interaction.

Researcher notes

Primary issue maps to CWE-305: authentication bypass by primary weakness. Public references include Red Hat advisories, Red Hat CVE entry, Bugzilla, GitHub advisory, and Dogtag PKI commits. Evidence is incomplete for RHEL 6 status and for any real-world exploitation.

Mitigation direction

  • Apply the relevant Red Hat security advisory updates for your RHEL or Certificate System stream.
  • Update affected pki-core or redhat-pki:10 packages according to Red Hat guidance.
  • Restrict network access to CA and PKI administrative interfaces where feasible.
  • For RHEL 6 or unclear deployments, request Red Hat support guidance.

Validation and detection

  • Inventory systems running dogtag-pki, pki-core, or Red Hat Certificate System.
  • Compare installed package versions against the affected versions in Red Hat advisories.
  • Confirm the applicable RHSA update is installed for each supported stream.
  • Review CA authentication logs for unusual session identifier handling or failed token authentication events.
  • Do not classify Keycloak as affected based only on this bundle.
Prepared
Confidence
high
Sources
12

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-305: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-4727 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
2ADP providers
15Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H1.65.9redhat

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2023-4727Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Reported to Red Hat.

  2. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  3. Source timelineredhat

    Made public.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendorkeycloakkeycloak, 0unaffected
Red HatRed Hat Certificate System 10.4 EUS for RHEL-8redhat-pki:10, 8060020240529205458.07fb4edfaffected
Red HatRed Hat Enterprise Linux 7pki-core, 0:10.5.18-32.el7_9affected
Red HatRed Hat Enterprise Linux 8pki-core:10.6, 8100020240614102443.82f485b7affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportpki-core:10.6, 8040020240329193548.17df0a3faffected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Servicepki-core:10.6, 8040020240329193548.17df0a3faffected
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutionspki-core:10.6, 8040020240329193548.17df0a3faffected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportpki-core:10.6, 8060020240329182634.60523a7baffected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicepki-core:10.6, 8060020240329182634.60523a7baffected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionspki-core:10.6, 8060020240329182634.60523a7baffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Supportpki-core:10.6, 8080020240329143735.693a3987affected
Red HatRed Hat Enterprise Linux 9pki-core, 0:11.5.0-2.el9_4affected
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutionspki-core, 0:11.0.6-3.el9_0affected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Supportpki-core, 0:11.3.0-2.el9_2affected
Red HatRed Hat Enterprise Linux 6pki-coreunknown
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-305 · source CWE mapping

Authentication Bypass by Primary Weakness

Authentication Bypass by Primary Weakness represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.