PowerScale OneFS: Improper Handling of Unexpected Data Type
CVE-2024-25966 is a high-severity improper handling of unexpected data type vulnerability in PowerScale OneFS from Dell, 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. Affected PowerScale OneFS versions: 8.2.x through 9.3.0.0; 9.4.0.0 through 9.4.0.17; 9.5.0.0 through 9.5.0.7, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.92% chance of exploitation within 30 days, higher than 61% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of PowerScale OneFS you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on dell.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 |
|---|---|---|---|
| Dell | PowerScale OneFS | 8.2.x through 9.3.0.0; 9.4.0.0 through 9.4.0.17; 9.5.0.0 through 9.5.0.7; 9.6.0.x through 9.7.0.1; 9.7.0.2; 8.2.0.0 through 9.3.0.0; 9.6.0.0 through 9.7.0.1; 9.7.0.2 through 9.7.0.3 | Not stated |
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 | 5.3 | Medium | CNA (emc.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Dell PowerScale OneFS versions 8.2.x through 9.7.0.2 contains an improper handling of unexpected data type vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to denial of service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Handling of Unexpected Data Type
The product does not handle or incorrectly handles when a particular element is not the expected type, e.g. it expects a digit (0-9) but is provided with a letter (A-Z).
How developers prevent this class of flaw
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
More Improper Handling of Unexpected Data Type vulnerabilities (CWE-241)
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 PowerScale OneFS
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Improper Handling of Unexpected Data Type vulnerabilities
- 8.1 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
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