CyberSecBulletin
CVE-2024-21622NVD status: Modified

cms: Improper Privilege Management

Published Updated By the CyberSecBulletin desk

CVE-2024-21622 is a high-severity improper privilege management vulnerability in cms from Craft CMS, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected cms versions: >= 4.0.0-RC1, < 4.5.11; >= 3.0.0, < 3.9.6. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.59% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Craft CMS to 3.9.6 or a later version.
  2. Read the advisory on github.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
Craft CMScms>= 4.0.0-RC1, < 4.5.11; >= 3.0.0, < 3.9.6Not stated
Craft CMSCraft CMS3.0.0 up to, but not including, 3.9.6; 4.0.0 through 4.5.153.9.6

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
LowA basic user account is enough.
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:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.15.4MediumCNA (github.com)
CVSS 3.18.8HighNVD

Official description

Craft is a content management system. This is a potential moderate impact, low complexity privilege escalation vulnerability in Craft starting in 3.x prior to 3.9.6 and 4.x prior to 4.4.16 with certain user permissions setups. This has been fixed in Craft 4.4.16 and Craft 3.9.6. Users should ensure they are running at least those versions.

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

The underlying weakness: Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

How developers prevent this class of flaw

  • Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.

More Improper Privilege Management vulnerabilities (CWE-269)

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

Other vulnerabilities in cms

All cms vulnerabilities

Recent Improper Privilege Management vulnerabilities

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