AirVantage, AirVantage-Capable Devices: All…: Improper Authentication
CVE-2023-31279 is a high-severity improper authentication vulnerability in AirVantage, AirVantage-Capable Devices: All Sierra Wireless devices. from Sierra Wireless, with a CVSS 3.1 base score of 8.1 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. There is no confirmed exploitation so far. EPSS estimates a 0.42% 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 AirVantage, AirVantage-Capable Devices: All Sierra Wireless devices. you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on source.sierrawireless.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Sierra Wireless | AirVantage, AirVantage-Capable Devices: All Sierra Wireless devices. | 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
- NoneNo data is disclosed.
- 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:N/I:H/A:H. Scored by CNA (sierrawireless.com).
Official description
The AirVantage platform is vulnerable to an unauthorized attacker registering previously unregistered devices on the AirVantage platform when the owner has not disabled the AirVantage Management Service on the devices or registered the device. This could enable an attacker to configure, manage, and execute AT commands on an unsuspecting user’s devices.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
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
Recent Improper Authentication vulnerabilities
- 8.9 High severity
- 9.8 Critical severity
- 7.1 High severity
- 9.8 Critical severity
- 8.1 High severity
- 7.2 High severity
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