Cyber Resilience

CVE-2024-55634

Drupal 8.0.0 – 10.2.11

Published
10 December 2024
Modified
02 June 2025
Patch / advisory
View advisory
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0041 34th percentile
Risk Priority 62 floored blend · peak EPSS

Summary

CVE-2024-55634 is a high-severity Improper Handling of Case Sensitivity (CWE-178) vulnerability in Drupal Drupal. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 34th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to IA-2 (Identification and Authentication (Organizational Users)) and IA-4 (Identifier Management) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

A vulnerability in Drupal Core allows Privilege Escalation.This issue affects Drupal Core: from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9, from 11.0.0 before 11.0.8.

CWE(s)
CWE-178CWE-289

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1036 Masquerading Stealth
Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-9082Same product: Drupal Drupal
CVE-2026-55807Same product: Drupal Drupal
CVE-2019-6340Same product: Drupal Drupal
CVE-2025-31675Same product: Drupal Drupal
CVE-2025-3057Same product: Drupal Drupal
CVE-2026-6367Same product: Drupal Drupal
CVE-2026-55808Same product: Drupal Drupal
CVE-2026-6365Same product: Drupal Drupal
CVE-2024-12393Same product: Drupal Drupal
CVE-2024-55635Same product: Drupal Drupal

Affected Assets

drupal
drupal
8.0.0 — 10.2.11 · 10.3.0 — 10.3.9 · 11.0.0 — 11.0.8

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 8 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V8.3.3
  • V10.3.2
  • V6.4.3

Mitigating Controls (NIST 800-53 r5) AI

IA-2 Identification and Authentication (Organizational Users) good match

Requiring unique identification and authentication of users forces the system to resolve all name variants to a single identity before access is granted.

IA-4 Identifier Management good match

Identifier management directly requires authorization and uniqueness checks that eliminate alternate-name aliases for the same actor or resource.

AC-24 Access Control Decisions partial match

Applying access control decisions to each request depends on accurate property determination that accounts for case differences.

AC-3 Access Enforcement partial match

Correct enforcement of authorizations for resource access structurally requires consistent case-sensitive handling of identifiers to avoid incorrect decisions.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 mostly match
prevents

Strong authentication mechanisms directly prevent name-based bypass when they enforce canonical name checks.

PR.AA-01 partial match
prevents

Proper identity management reduces alternate-name collisions but does not guarantee canonicalization inside the auth decision.

PR.AA-05 partial match
prevents

Authorization policy enforcement assumes correct identity; the weakness occurs before policy is applied.

PR.PS-06 partial match
prevents

Secure SDLC practices can catch and prevent case-sensitivity flaws during code review or testing, but fixing one CWE achieves negligible coverage of the broad control.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.15 Access control partial match
prevents

Access-control policy can mandate canonical-name checks but does not prescribe the technical implementation.

A.5.16 Identity management partial match
prevents

Identity-management processes can require unique, canonical identifiers, reducing alternate-name bypass risk.

A.5.17 Authentication information partial match
degrades

Proper management of authentication credentials can include rules against duplicate or alias identities.

A.5.18 Access rights partial match
prevents

Access-rights provisioning can enforce canonical-name validation when granting rights.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC practices should include case-sensitivity requirements in design and coding standards.

A.8.26 Application security requirements partial match
prevents

Application security requirements must specify case handling for identifiers and paths.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248538 OL 8 operating systems booted with United Extensible Firmware Interface (UEFI) must have a unique name for the grub superusers account when booting into single-user mode and maintenance. prevents CWE-289
RHEL 7 (1 rule)
  • V-244558 Red Hat Enterprise Linux operating systems version 7.2 or newer booted with United Extensible Firmware Interface (UEFI) must have a unique name for the grub superusers account when booting into single-user mode and maintenance. prevents CWE-289

References