RUCKUS H350: Improper Neutralization of Special Elements used in an OS Command
CVE-2023-7338 is a high-severity improper neutralization of special elements used in an OS command vulnerability in RUCKUS H350 from Ruckus Networks, with a CVSS 3.1 base score of 7.5 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. There is no confirmed exploitation so far. EPSS estimates a 0.54% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of RUCKUS H350 you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Ruckus Networks | RUCKUS H350 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS H550 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS R350 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS R550 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS R650 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS R750 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS R850 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS T350c | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS T350d | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS T350se | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS T750 | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS T750SE | Not specified in the record | Not stated |
| Ruckus Networks | RUCKUS Unleashed | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus C110 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus E510 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus H320 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus H510 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus M510-JP | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus R320 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus R510 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus R610 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus R710 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus R720 | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus T310c | Not specified in the record | Not stated |
| Ruckus Networks | Ruckus T310d | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE; 5 further products are omitted here. 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
- HighSuccess depends on conditions outside the attacker's control.
- 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:H/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (vulncheck.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.7 | High | CNA (vulncheck.com) |
| CVSS 3.1 | 7.5 | High | CNA (vulncheck.com) |
Official description
Ruckus Unleashed contains a remote code execution vulnerability in the web-based management interface that allows authenticated remote attackers to execute arbitrary code on the system when gateway mode is enabled. Attackers can exploit this vulnerability by sending specially crafted requests through the management interface to achieve arbitrary code execution on affected systems.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements used in an OS Command
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.
How developers prevent this class of flaw
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
- For any data that will be used to generate a command to be executed, keep as much of that data out of external control as possible. For example, in web applications, this may require storing the data locally in the session's state instead of sending it out to the client in a hidden form field.
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
More Improper Neutralization of Special Elements used in an OS Command vulnerabilities (CWE-78)
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 references
Recent Improper Neutralization of Special Elements used in an OS Command vulnerabilities
- 7.2 High severity
- 9.8 Critical severity
- 9.9 Critical severity
- 8.8 High severity
- 8.8 High severity
- 7.2 High severity
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