FOXMAN-UN: Authentication Bypass Using an Alternate Path or Channel
CVE-2024-2012 is a critical-severity authentication bypass using an alternate path or channel vulnerability in FOXMAN-UN from Hitachi Energy, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected FOXMAN-UN versions: FOXMAN-UN R16B PC2; FOXMAN-UN R15B PC4; FOXMAN-UN R16A, 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 0.6% 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
- Check which version of FOXMAN-UN you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on publisher.hitachienergy.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 |
|---|---|---|---|
| Hitachi Energy | FOXMAN-UN | FOXMAN-UN R16B PC2; FOXMAN-UN R15B PC4; FOXMAN-UN R16A; FOXMAN-UN R15A | Not stated |
| Hitachi Energy | UNEM | UNEM R16B PC2; UNEM R15B PC4; UNEM R15B PC5; UNEM R15A; UNEM R16A | Not stated |
| Hitachienergy | foxman_un | pc2; pc4; r16a; r15a | Not stated |
| Hitachienergy | unem | pc2; pc4; pc5; r15a; r16a | 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
- 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:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.1 | Critical | CNA (hitachienergy.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
Official description
vulnerability exists in the FOXMAN-UN/UNEM server / API Gateway that if exploited an attacker could use to allow unintended commands or code to be executed on the UNEM server allowing sensitive data to be read or modified or could cause other unintended behavior
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Authentication Bypass Using an Alternate Path or Channel
The product requires authentication, but the product has an alternate path or channel that does not require authentication.
How developers prevent this class of flaw
- Funnel all access through a single choke point to simplify how users can access a resource. For every access, perform a check to determine if the user has permissions to access the resource.
More Authentication Bypass Using an Alternate Path or Channel vulnerabilities (CWE-288)
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
Other vulnerabilities in FOXMAN-UN
- 8.0 High severity
- 10.0 Critical severity
- 9.8 Critical severity
- 7.4 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Authentication Bypass Using an Alternate Path or Channel vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
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