Omnia Mpx Node Firmware: Missing Authorization
CVE-2022-36642 is a critical-severity missing authorization vulnerability in Omnia Mpx Node Firmware from Telosalliance, 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. The record lists version 1.5.0 as the first without the flaw, so updating Omnia Mpx Node Firmware to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 13.1% chance of exploitation within 30 days, which is in the top 3.58% of all scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Omnia Mpx Node Firmware to 1.5.0 or a later version.
- Read the advisory on telosalliance.com for workarounds and exact fixed builds.
- 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 |
|---|---|---|---|
| Telosalliance | Omnia Mpx Node Firmware | 1.0.0 up to, but not including, 1.5.0; 1.5.0 | 1.5.0 |
Version data comes from NVD's product matching. 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 NVD.
Official description
A local file disclosure vulnerability in /appConfig/userDB.json of Telos Alliance Omnia MPX Node through 1.0.0-1.4.9 allows attackers to access users credentials which makes him able to gain initial access to the control panel with high privilege because the cleartext storage of sensitive information which can be unlatched by exploiting the LFD vulnerability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Missing Authorization
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
How developers prevent this class of flaw
- Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
- Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework and the OWASP ESAPI Access Control feature.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Technical write-ups (may include proof of concept)
- cyber-guy.gitbook.io/cyber-guy/pocs/omnia-node-mpx-auth-bypass-via-lfdExploit, Third Party Advisory
- cyber-guy.gitbook.io/cyber-guys-blog/blogs/bypassing-mpx-node-authentication-firmware-analysisExploit, Third Party Advisory
- drive.google.com/drive/folders/1jm9h8JNmezTt7AbHYRY7gPC4lXGDNklLExploit, Third Party Advisory
- exploit-db.com/exploits/50996Exploit, Third Party Advisory, VDB Entry
Other vulnerabilities in Omnia Mpx Node Firmware
- 8.8 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Missing Authorization vulnerabilities
- 7.5 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 9.1 Critical severity
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