Trio 8300: Improper Neutralization of Special Elements used in an OS Command
CVE-2023-4464 is a high-severity improper neutralization of special elements used in an OS command vulnerability in Trio 8300 from Poly, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 3.31% chance of exploitation within 30 days, higher than 89% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Trio 8300 you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Poly | Trio 8300 | Not specified in the record | Not stated |
| Poly | Trio 8500 | Not specified in the record | Not stated |
| Poly | Trio 8800 | Not specified in the record | Not stated |
| Poly | Trio C60 | Not specified in the record | Not stated |
| Poly | CCX 350 | Not specified in the record | Not stated |
| Poly | CCX 400 | Not specified in the record | Not stated |
| Poly | CCX 500 | Not specified in the record | Not stated |
| Poly | CCX 505 | Not specified in the record | Not stated |
| Poly | CCX 600 | Not specified in the record | Not stated |
| Poly | CCX 700 | Not specified in the record | Not stated |
| Poly | EDGE E100 | Not specified in the record | Not stated |
| Poly | EDGE E220 | Not specified in the record | Not stated |
| Poly | EDGE E300 | Not specified in the record | Not stated |
| Poly | EDGE E320 | Not specified in the record | Not stated |
| Poly | EDGE E350 | Not specified in the record | Not stated |
| Poly | EDGE E400 | Not specified in the record | Not stated |
| Poly | EDGE E450 | Not specified in the record | Not stated |
| Poly | EDGE E500 | Not specified in the record | Not stated |
| Poly | EDGE E550 | Not specified in the record | Not stated |
| Poly | VVX 101 | Not specified in the record | Not stated |
| Poly | VVX 150 | Not specified in the record | Not stated |
| Poly | VVX 201 | Not specified in the record | Not stated |
| Poly | VVX 250 | Not specified in the record | Not stated |
| Poly | VVX 300 | Not specified in the record | Not stated |
| Poly | VVX 301 | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE; 16 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
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- 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:H/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.2 | High | CNA (vuldb.com) |
| CVSS 3.1 | 7.2 | High | NVD |
| CVSS 2.0 | 8.3 | High | CNA (vuldb.com) |
Official description
A vulnerability, which was classified as critical, has been found in Poly Trio 8300, Trio 8500, Trio 8800, Trio C60, CCX 350, CCX 400, CCX 500, CCX 505, CCX 600, CCX 700, EDGE E100, EDGE E220, EDGE E300, EDGE E320, EDGE E350, EDGE E400, EDGE E450, EDGE E500, EDGE E550, VVX 101, VVX 150, VVX 201, VVX 250, VVX 300, VVX 301, VVX 310, VVX 311, VVX 350, VVX 400, VVX 401, VVX 410, VVX 411, VVX 450, VVX 500, VVX 501, VVX 600 and VVX 601. This issue affects some unknown processing of the component Diagnostic Telnet Mode. The manipulation leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component. The identifier VDB-249257 was assigned to this vulnerability.
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.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- vuldb.com/?ctiid.249257Permissions Required, Third Party Advisory, VDB Entry
- vuldb.com/?id.249257Third Party Advisory, VDB Entry
Other references
Recent Improper Neutralization of Special Elements used in an OS Command vulnerabilities
- 7.8 High severity
- 9.8 Critical severity
- 8.8 High severity
- 7.8 High severity
- 7.2 High severity
- 9.8 Critical severity
Spotted an error? Tell us.