FutureNet NXR-G110 series: Incorrect Provision of Specified Functionality
CVE-2024-50357 is a critical-severity incorrect provision of specified functionality vulnerability in FutureNet NXR-G110 series from Century Systems, with a CVSS 3.0 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 FutureNet NXR-G110 series versions: firmware versions 21.15.7 and later but prior to 21.15.9. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.55% 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 futurenet_nxr-g110_firmware to 21.15.9 or a later version.
- Update futurenet_nxr-g060_firmware to 21.15.6C1 or a later version.
- Update futurenet_nxr-g050_firmware to 21.12.11 or a later version.
- 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 |
|---|---|---|---|
| Century Systems | FutureNet NXR-G110 series | firmware versions 21.15.7 and later but prior to 21.15.9 | Not stated |
| Century Systems | FutureNet NXR-G060 series | firmware versions prior to 21.15.6C1 | Not stated |
| Century Systems | FutureNet NXR-G050 series | firmware versions 21.12.5 and later but prior to 21.12.11 | Not stated |
| Centurysys | futurenet_nxr-g110_firmware | 21.15.7 up to, but not including, 21.15.9 | 21.15.9 |
| Centurysys | futurenet_nxr-g060_firmware | before 21.15.6C1 | 21.15.6C1 |
| Centurysys | futurenet_nxr-g050_firmware | 21.12.5 up to, but not including, 21.12.11 | 21.12.11 |
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (jpcert.or.jp).
Official description
FutureNet NXR series routers provided by Century Systems Co., Ltd. have REST-APIs, which are configured as disabled in the initial (factory default) configuration. But, REST-APIs are unexpectedly enabled when the affected product is powered up, provided either http-server (GUI) or Web authentication is enabled. The factory default configuration makes http-server (GUI) enabled, which means REST-APIs are also enabled. The username and the password for REST-APIs are configured in the factory default configuration. As a result, an attacker may obtain and/or alter the affected product's settings via REST-APIs.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incorrect Provision of Specified Functionality
The code does not function according to its published specifications, potentially leading to incorrect usage.
How developers prevent this class of flaw
- Ensure that your code strictly conforms to specifications.
More Incorrect Provision of Specified Functionality vulnerabilities (CWE-684)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in FutureNet NXR-G110 series
- 9.8 Critical severity
- 8.8 High severity
- 9.1 Critical severity
Recent Incorrect Provision of Specified Functionality vulnerabilities
- 7.4 High severity
- 9.1 Critical severity
- 7.5 High severity
- 9.8 Critical severity
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