CLUSTERPRO X (EXPRESSCLUSTER X): Use of Password Hash Instead of Password for Authentication
CVE-2023-39546 is a high-severity use of password hash instead of password for authentication 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 0.63% chance of exploitation within 30 days, higher than 51% 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: Use of Password Hash Instead of Password for Authentication
The product includes a client that computes a hash of a password and sends the hash to another component, which compares the supplied hash to the hash obtained from a data store of password hashes.
More Use of Password Hash Instead of Password for Authentication vulnerabilities (CWE-836)
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
Third-party and government advisories
- 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 Use of Password Hash Instead of Password for Authentication vulnerabilities
- 9.8 Critical severity
Spotted an error? Tell us.