ELI 380 Resting Electrocardiograph: Improper Access Control
CVE-2022-26389 is a high-severity improper access control vulnerability in ELI 380 Resting Electrocardiograph from Baxter/ Hillrom, with a CVSS 3.1 base score of 7.7 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 ELI 380 Resting Electrocardiograph versions: 2.6.0 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 0.3% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of ELI 380 Resting Electrocardiograph you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Baxter/ Hillrom | ELI 380 Resting Electrocardiograph | 2.6.0 and earlier | Not stated |
| Welch Allyn | ELI 280/BUR280/MLBUR 280 Resting Electrocardiograph | 2.3.1 and earlier | Not stated |
| Welch Allyn | ELI 250c/BUR 250c Resting Electrocardiograph | 2.1.2 and earlier | Not stated |
| Welch Allyn | ELI 150c/BUR 150c/MLBUR 150c Resting Electrocardiograph | 2.2.0 and earlier | 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
- HighSuccess depends on conditions outside the attacker's control.
- 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
- LowSome restricted data can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H. Scored by CNA (baxter.com).
Official description
An improper access control vulnerability may allow privilege escalation.This issue affects: * ELI 380 Resting Electrocardiograph: Versions 2.6.0 and prior; * ELI 280/BUR280/MLBUR 280 Resting Electrocardiograph: Versions 2.3.1 and prior; * ELI 250c/BUR 250c Resting Electrocardiograph: Versions 2.1.2 and prior; * ELI 150c/BUR 150c/MLBUR 150c Resting Electrocardiograph: Versions 2.2.0 and prior.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized 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.
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
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
Other references
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