Analog FM transmitter: Improper Privilege Management
CVE-2023-41966 is a high-severity improper privilege management vulnerability in Analog FM transmitter from Sielco, 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. Affected Analog FM transmitter versions: 2.12 (EXC5000GX); 2.12 (EXC120GX); 2.11 (EXC300GX), and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.75% chance of exploitation within 30 days, higher than 56% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Analog FM transmitter you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Sielco | Analog FM transmitter | 2.12 (EXC5000GX); 2.12 (EXC120GX); 2.11 (EXC300GX); 2.10 (EXC1600GX); 2.10 (EXC2000GX); 2.08 (EXC1600GX); 2.08 (EXC1000GX); 2.07 (EXC3000GX); and 7 more ranges | Not stated |
| Sielco | Radio Link | 2.06 (RTX19); 2.05 (RTX19); 2.00 (EXC19); 1.60 (RTX19); 1.59 (RTX19); 1.55 (EXC19) | Not stated |
| Sielco | Analog Fm Transmitter Exc5000gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc120gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc300gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc1600gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc2000gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc1000gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc3000gx Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc30gt Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc300gt Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc100gt Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc5000gt Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc1000gt Firmware | Not specified in the record | Not stated |
| Sielco | Analog Fm Transmitter Exc120gt Firmware | Not specified in the record | Not stated |
| Sielco | Radio Link Rtx19 Firmware | Not specified in the record | Not stated |
| Sielco | Radio Link Exc19 Firmware | Not specified in the record | Not stated |
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
- 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 | 6.5 | Medium | CNA (hq.dhs.gov) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
The application suffers from a privilege escalation vulnerability. A user with read permissions can elevate privileges by sending a HTTP POST to set a parameter.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- cisa.gov/news-events/ics-advisories/icsa-23-299-08Third Party Advisory, US Government Resource
Other references
- sielco.org/en/contactsProduct
Other vulnerabilities in Analog FM transmitter
- 8.8 High severity
- 9.8 Critical severity
Recent Improper Privilege Management vulnerabilities
- 8.8 High severity
- 7.8 High severity
- 7.8 High severity
- 8.2 High severity
- 8.2 High severity
- 8.2 High severity
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