coda-4582u_firmware: Insufficient Entropy
CVE-2024-25730 is a critical-severity insufficient entropy vulnerability in coda-4582u_firmware from Hitrontech, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected coda-4582u_firmware versions: all versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.86% chance of exploitation within 30 days, higher than 59% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of coda-4582u_firmware you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hitrontech | coda-4582u_firmware | all versions | Not stated |
| Hitrontech | coda-4589_firmware | all versions | 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
- NoneNo account or login is needed.
- 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:N/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
Hitron CODA-4582 and CODA-4589 devices have default PSKs that are generated from 5-digit hex values concatenated with a "Hitron" substring, resulting in insufficient entropy (only about one million possibilities).
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Entropy
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
How developers prevent this class of flaw
- Determine the necessary entropy to adequately provide for randomness and predictability. This can be achieved by increasing the number of bits of objects such as keys and seeds.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- github.com/actuator/cve/blob/main/Hitron/CVE-2024-25730Third Party Advisory
Other references
- i.ebayimg.com/images/g/I-8AAOSwGE9lsGwI/s-l1600.webpProduct
- i.ebayimg.com/images/g/MwMAAOSwjTFk3kpd/s-l1600.webpProduct
- i.ebayimg.com/images/g/VDcAAOSwlodlSuz4/s-l1600.webpProduct
- i.ebayimg.com/images/g/XaAAAOSwvMNkuESk/s-l1600.webpProduct
- i.ebayimg.com/images/g/hzUAAOSwUwVllGMZ/s-l1600.webpProduct
- i.ebayimg.com/images/g/qK8AAOSwbr9lq3PJ/s-l1600.webpProduct
Recent Insufficient Entropy vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 9.8 Critical severity
- 9.8 Critical severity
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