VAR1200-H: Improper Neutralization of Special Elements used in a Command
CVE-2024-37023 is a critical-severity improper neutralization of special elements used in a command vulnerability in VAR1200-H from Vonets, with a CVSS 3.1 base score of 9.9 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. Affected VAR1200-H versions: 3.3.23.6.9 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.26% chance of exploitation within 30 days, higher than 70% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of VAR1200-H you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Vonets | VAR1200-H | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAR1200-L | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAR600-H | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11AC | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11G-500S | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VBG1200 | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11S-5G | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11S | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAR11N-300 | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11G-300 | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11N-300 | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11G | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VAP11G-500 | 3.3.23.6.9 and earlier | Not stated |
| Vonets | VGA-1000 | 3.3.23.6.9 and earlier | Not stated |
| Vonets | var1200-h_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | var1200-l_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | var600-h_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vap11ac_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vap11g-500s_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vbg1200_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vap11s-5g_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vap11s_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | var11n-300_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vap11n-300_firmware | 3.3.23.6.9 and earlier | Not stated |
| Vonets | vap11g_firmware | 3.3.23.6.9 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE; 3 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
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 9.4 | Critical | CNA (hq.dhs.gov) |
| CVSS 3.1 | 9.1 | Critical | CNA (hq.dhs.gov) |
| CVSS 3.1 | 9.9 | Critical | NVD |
Official description
Multiple OS command injection vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge repeaters, software versions 3.3.23.6.9 and prior, enable an authenticated remote attacker to execute arbitrary OS commands via various endpoint parameters.
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
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- cisa.gov/news-events/ics-advisories/icsa-24-214-08Third Party Advisory, US Government Resource
Other vulnerabilities in VAR1200-H
- 9.8 Critical severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 8.6 High severity
- 9.8 Critical severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 9.8 Critical severity
- 9.1 Critical severity
- 7.2 High severity
- 9.3 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
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