ONTAP 9: Uncontrolled Resource Consumption
CVE-2023-27314 is a high-severity uncontrolled resource consumption vulnerability in ONTAP 9 from NetApp, 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 version 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, 9.13.1 as the first without the flaw, so updating ONTAP 9 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.85% chance of exploitation within 30 days, higher than 59% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update ONTAP 9 to 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, 9.13.1 or a later version.
- Update Clustered Data Ontap to 9.8 or a later version.
- Read the advisory on security.netapp.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 |
|---|---|---|---|
| NetApp | ONTAP 9 | before 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, 9.13.1 | 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, 9.13.1 |
| NetApp | Clustered Data Ontap | 9.0 up to, but not including, 9.8; 9.8; 9.9.1; 9.10.0; 9.10.1; 9.12.0; 9.13.0 | 9.8 |
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
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (netapp.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
ONTAP 9 versions prior to 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2 and 9.13.1 are susceptible to a vulnerability which could allow a remote unauthenticated attacker to cause a crash of the HTTP service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
How developers prevent this class of flaw
- Ensure that protocols have specific limits of scale placed on them.
- Ensure that all failures in resource allocation place the system into a safe posture.
More Uncontrolled Resource Consumption vulnerabilities (CWE-400)
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 ONTAP 9
- 8.8 High severity
- 7.5 High severity
- 9.1 Critical severity
- 7.6 High severity
- 7.5 High severity
- 8.1 High severity
Recent Uncontrolled Resource Consumption vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
HTTP/2 Rapid Reset Attack Exploited
- 7.5 High severity
- 7.5 High severity
- 8.6 High severity
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