ColdFusion: Improper Access Control
CVE-2024-34112 is a high-severity improper access control vulnerability in ColdFusion from Adobe, with a CVSS 3.1 base score of 7.5 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 update_8, update_14 as the first without the flaw, so updating ColdFusion to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 23.7% chance of exploitation within 30 days, which is in the top 2.15% of all scored CVEs.
EPSS places it among the vulnerabilities most likely to be exploited soon.
What to do
- Update ColdFusion to update_8 or update_14, whichever matches your release line, or a later version.
- Read the advisory on helpx.adobe.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Adobe | ColdFusion | 2021u13 and earlier; 2023 up to, but not including, update_8; 2021 up to, but not including, update_14 | update_8, update_14 |
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
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CNA (adobe.com).
Official description
ColdFusion versions 2023u7, 2021u13 and earlier are affected by an Improper Access Control vulnerability that could result in arbitrary file system read. An attacker could exploit this vulnerability to gain unauthorized access to sensitive files or data. Exploitation of this issue does not require user interaction.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized 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.
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in ColdFusion
- 7.1 High severity
- 7.5 High severity
- 8.4 High severity
- 9.6 Critical severity
- 7.6 High severity
- 8.4 High severity
Recent Improper Access Control vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 7.8 High severity
- 8.8 High severity
- 7.8 High severity
- 9.8 Critical severity
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