VLink Virtual Matrix Software: Improper Neutralization of Special Elements used in a Command
CVE-2023-34999 is a high-severity improper neutralization of special elements used in a command vulnerability in VLink Virtual Matrix Software from RTS, 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. The record lists versions 5.7.6, 6.5.0 as the first without the flaw, so updating VLink Virtual Matrix Software to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.22% chance of exploitation within 30 days, higher than 69% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update VLink Virtual Matrix Software to 5.7.6 or 6.5.0, whichever matches your release line, or a later version.
- Update Rts Vlink Virtual Matrix to 5.7.6 or 6.5.0, whichever matches your release line, or a later version.
- Read the advisory on psirt.bosch.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| RTS | VLink Virtual Matrix Software | 5.0.0 up to, but not including, 5.7.6; 6.0.0 up to, but not including, 6.5.0 | 5.7.6, 6.5.0 |
| Bosch | Rts Vlink Virtual Matrix | 5.0.0 up to, but not including, 5.7.6; 6.0.0 up to, but not including, 6.5.0 | 5.7.6, 6.5.0 |
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
- 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 | 8.4 | High | CNA (bosch.com) |
| CVSS 3.1 | 7.2 | High | NVD |
Official description
A command injection vulnerability exists in RTS VLink Virtual Matrix Software Versions v5 (< 5.7.6) and v6 (< 6.5.0) that allows an attacker to perform arbitrary code execution via the admin web interface.
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
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 7.2 High severity
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