Nodegrid OS: Improper Neutralization of Special Elements used in a Command
CVE-2023-43322 is a high-severity improper neutralization of special elements used in a command vulnerability in Nodegrid OS from Zpesystems, with a CVSS 3.1 base score of 8.8 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. The record lists versions 5.0.18, 5.2.20, 5.4.17 as the first without the flaw, so updating Nodegrid OS to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.29% chance of exploitation within 30 days, higher than 71% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Nodegrid OS to 5.0.18 or 5.2.20 or 5.4.17 or 5.6.14, whichever matches your release line, or a later version.
- Read the advisory on psirt.zpesystems.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Zpesystems | Nodegrid OS | 5.0.0 up to, but not including, 5.0.18; 5.2.0 up to, but not including, 5.2.20; 5.4.0 up to, but not including, 5.4.17; 5.6.0 up to, but not including, 5.6.14; 5.8.0 up to, but not including, 5.8.11; 5.10.0 up to, but not including, 5.10.4 | 5.0.18, 5.2.20, 5.4.17, 5.6.14, 5.8.11, 5.10.4 |
Version data comes from NVD's product matching. 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
- 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:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.1 | 8.8 | High | CISA (ADP) |
Official description
ZPE Systems, Inc Nodegrid OS v5.0.0 to v5.0.17, v5.2.0 to v5.2.19, v5.4.0 to v5.4.16, v5.6.0 to v5.6.13, v5.8.0 to v5.8.10, and v5.10.0 to v5.10.3 was discovered to contain a command injection vulnerability via the endpoint /v1/system/toolkit/files/.
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 a Command
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when 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.
- If possible, ensure that all external commands called from the program are statically created.
- Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)
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 Nodegrid OS
- 7.5 High severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 9.8 Critical severity
- 7.2 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
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