File Station 5: Files or Directories Accessible to External Parties
CVE-2024-48864 is a critical-severity files or directories accessible to external parties vulnerability in File Station 5 from QNAP, with a CVSS 3.1 base score of 9.1 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 5.5.6.4741 as the first without the flaw, so updating File Station 5 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.49% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update File Station 5 to 5.5.6.4741 or a later version.
- Update File Station to 5.5.6.4741 or a later version.
- Read the advisory on qnap.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 |
|---|---|---|---|
| QNAP | File Station 5 | 5.5.x up to, but not including, 5.5.6.4741 | 5.5.6.4741 |
| QNAP | File Station | 5.5.6.4691 up to, but not including, 5.5.6.4741 | 5.5.6.4741 |
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
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 5.3 | Medium | CNA (qnapsecurity.com.tw) |
| CVSS 3.1 | 9.1 | Critical | NVD |
Official description
A files or directories accessible to external parties vulnerability has been reported to affect File Station 5. If exploited, the vulnerability could allow remote attackers to read/write files or directories. We have already fixed the vulnerability in the following versions: File Station 5 5.5.6.4741 and later
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.
How developers prevent this class of flaw
- When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to disable public access.
More Files or Directories Accessible to External Parties vulnerabilities (CWE-552)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in File Station 5
- 9.1 Critical severity
- 9.1 Critical severity
- 8.1 High severity
- 8.1 High severity
- 7.5 High severity
- 8.8 High severity
Recent Files or Directories Accessible to External Parties vulnerabilities
- 7.3 High severity
- 8.6 High severity
- 8.3 High severity
- 7.5 High severity
- 7.5 High severity
- 8.5 High severity
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