QTS: Improper Neutralization of Special Elements used in a Command
CVE-2023-41283 is a high-severity improper neutralization of special elements used in a command vulnerability in QTS from QNAP, 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 5.1.4.2596 build 20231128, 5.1.4.2596_build 20231128 as the first without the flaw, so updating QTS to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.97% chance of exploitation within 30 days, higher than 62% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update QTS to 5.1.4.2596 build 20231128 or 5.1.4.2596_build 20231128, whichever matches your release line, or a later version.
- Update QuTS hero to h5.1.4.2596 build 20231128 or 5.1.4.2596_build 20231128, whichever matches your release line, or a later version.
- Update QuTScloud to c5.1.5.2651 or 5.1.5.2651, whichever matches your release line, or a later version.
- Read the advisory on qnap.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| QNAP | QTS | 5.1.x up to, but not including, 5.1.4.2596 build 20231128; 5.1.0 up to, but not including, 5.1.4.2596_build 20231128 | 5.1.4.2596 build 20231128, 5.1.4.2596_build 20231128 |
| QNAP | QuTS hero | h5.1.x up to, but not including, h5.1.4.2596 build 20231128; 5.1.0 up to, but not including, 5.1.4.2596_build 20231128 | h5.1.4.2596 build 20231128, 5.1.4.2596_build 20231128 |
| QNAP | QuTScloud | c5.x.x up to, but not including, c5.1.5.2651; 5.0.0 up to, but not including, 5.1.5.2651 | c5.1.5.2651, 5.1.5.2651 |
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 | 5.5 | Medium | CNA (qnapsecurity.com.tw) |
| CVSS 3.1 | 7.2 | High | NVD |
Official description
An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.4.2596 build 20231128 and later QuTS hero h5.1.4.2596 build 20231128 and later QuTScloud c5.1.5.2651 and later
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
Advisories
Other vulnerabilities in QTS
- 7.2 High severity
- 7.2 High severity
- 7.2 High severity
- 7.2 High severity
- 7.2 High severity
- 7.2 High severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 7.2 High severity
- 8.8 High severity
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
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