GS-4210-24PL4C hardware 2.0: Improper Handling of Insufficient Permissions or Privileges
CVE-2024-8451 is a high-severity improper handling of insufficient permissions or privileges vulnerability in GS-4210-24PL4C hardware 2.0 from PLANET Technology, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 2.305b240719 as the first without the flaw, so updating GS-4210-24PL4C hardware 2.0 to that release or later removes the exposure. 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.
High severity with no evidence of exploitation so far.
What to do
- Update GS-4210-24PL4C hardware 2.0 to 2.305b240719 or a later version.
- Update GS-4210-24P2S hardware 3.0 to 3.305b240802 or a later version.
- Update Gs-4210-24p2s Firmware to 3.305b240802 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 |
|---|---|---|---|
| PLANET Technology | GS-4210-24PL4C hardware 2.0 | before 2.305b240719 | 2.305b240719 |
| PLANET Technology | GS-4210-24P2S hardware 3.0 | before 3.305b240802 | 3.305b240802 |
| Planet | Gs-4210-24p2s Firmware | before 3.305b240802 | 3.305b240802 |
| Planet | Gs-4210-24pl4c Firmware | before 2.305b240719 | 2.305b240719 |
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
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (cert.org.tw) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Certain switch models from PLANET Technology have an SSH service that improperly handles insufficiently authenticated connection requests, allowing unauthorized remote attackers to exploit this weakness to occupy connection slots and prevent legitimate users from accessing the SSH service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Handling of Insufficient Permissions or Privileges
The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state.
How developers prevent this class of flaw
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
- Always check to see if you have successfully accessed a resource or system functionality, and use proper error handling if it is unsuccessful. Do this even when you are operating in a highly privileged mode, because errors or environmental conditions might still cause a failure. For example, environments with highly granular permissions/privilege models, such as Windows or Linux capabilities, can cause unexpected failures.
More Improper Handling of Insufficient Permissions or Privileges vulnerabilities (CWE-280)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- twcert.org.tw/en/cp-139-8052-ac0ea-2.htmlThird Party Advisory
- twcert.org.tw/tw/cp-132-8051-5048e-1.htmlThird Party Advisory
Other vulnerabilities in GS-4210-24PL4C hardware 2.0
- 8.8 High severity
- 9.8 Critical severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 8.8 High severity
Recent Improper Handling of Insufficient Permissions or Privileges vulnerabilities
- 8.8 High severity
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.8 High severity
- 7.8 High severity
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