Dl8000 Firmware: Insufficient Verification of Data Authenticity
CVE-2022-30264 is a critical-severity insufficient verification of data authenticity vulnerability in Dl8000 Firmware from Emerson, 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 Dl8000 Firmware versions: 2022-05-02 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 0.55% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Roc809 Firmware to 2022-05-02 or a later version.
- Update Roc827 Firmware to 2022-05-02 or a later version.
- 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 |
|---|---|---|---|
| Emerson | Dl8000 Firmware | 2022-05-02 and earlier | Not stated |
| Emerson | Roc809 Firmware | before 2022-05-02 | 2022-05-02 |
| Emerson | Roc800l Firmware | 2022-05-02 and earlier | Not stated |
| Emerson | Fb3000 Rtu Firmware | 2022-05-02 and earlier | Not stated |
| Emerson | Roc827 Firmware | before 2022-05-02 | 2022-05-02 |
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
The Emerson ROC and FloBoss RTU product lines through 2022-05-02 perform insecure filesystem operations. They utilize the ROC protocol (4000/TCP, 5000/TCP) for communications between a master terminal and RTUs. Opcode 203 of this protocol allows a master terminal to transfer files to and from the flash filesystem and carrying out arbitrary file and directory read, write, and delete operations.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- cisa.gov/uscert/ics/advisories/icsa-22-223-04Mitigation, Third Party Advisory, US Government Resource
Third-party and government advisories
- forescout.com/blog/Third Party Advisory
Other vulnerabilities in Dl8000 Firmware
- 9.4 Critical severity
Recent Insufficient Verification of Data Authenticity vulnerabilities
- 7.5 High severity
- 9.8 Critical severity
- 7.2 High severity
- 8.8 High severity
- 9.8 Critical severity
- 7.5 High severity
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