CLUSTERPRO X (EXPRESSCLUSTER X): Files or Directories Accessible to External Parties
CVE-2023-39545 is a high-severity files or directories accessible to external parties vulnerability in CLUSTERPRO X (EXPRESSCLUSTER X) from NEC, 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 CLUSTERPRO X (EXPRESSCLUSTER X) versions: 1.0, 2.0 2.1, 3.0, 3.1, 3.2, 4.0, 4.1, 4.2, 5.0 and 5.1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.74% chance of exploitation within 30 days, higher than 55% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of CLUSTERPRO X (EXPRESSCLUSTER X) you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| NEC | CLUSTERPRO X (EXPRESSCLUSTER X) | 1.0, 2.0 2.1, 3.0, 3.1, 3.2, 4.0, 4.1, 4.2, 5.0 and 5.1 | Not stated |
| NEC | CLUSTERPRO X SingleServerSafe (EXPRESSCLUSTER X SingleServerSafe) | 1.0, 2.0 2.1, 3.0, 3.1, 3.2, 4.0, 4.1, 4.2, 5.0 and 5.1 | Not stated |
| Nec | Expresscluster X | 1.0; 2.0; 2.1; 3.0; 3.1; 3.2; 3.3; 4.0; and 5 more ranges | Not stated |
| Nec | Expresscluster X Singleserversafe | 1.0; 2.0; 2.1; 3.0; 3.1; 3.2; 3.3; 4.0; and 5 more ranges | 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
- 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.
Official description
CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.
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: total).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- jpn.nec.com/security-info/secinfo/nv23-009_en.htmlThird Party Advisory
Other vulnerabilities in CLUSTERPRO X (EXPRESSCLUSTER X)
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
Recent Files or Directories Accessible to External Parties vulnerabilities
- 7.8 High severity
- 8.8 High severity
- 8.8 High severity
- 7.2 High severity
- 8.8 High severity
- 7.5 High severity
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