RAD-ISM-900-EN-BD/B: Improper Validation of Integrity Check Value
CVE-2022-29898 is a high-severity improper validation of integrity check value vulnerability in RAD-ISM-900-EN-BD/B from Phoenix Contact, with a CVSS 2.0 base score of 9.0 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 RAD-ISM-900-EN-BD/B 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 0.65% chance of exploitation within 30 days, higher than 52% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of RAD-ISM-900-EN-BD/B you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on cert.vde.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| PHOENIX CONTACT | RAD-ISM-900-EN-BD/B | All Versions | Not stated |
| PHOENIX CONTACT | RAD-ISM-900-EN-BD | All Versions | Not stated |
| PHOENIX CONTACT | RAD-ISM-900-EN-BD-BUS | All Versions | Not stated |
| Phoenixcontact | Rad-ism-900-en-bd Firmware | Not specified in the record | Not stated |
| Phoenixcontact | Rad-ism-900-en-bd/b Firmware | Not specified in the record | Not stated |
| Phoenixcontact | Rad-ism-900-en-bd-bus Firmware | 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
- Access vector
- NetworkCan be exploited remotely over a network.
- Access complexity
- LowNo special conditions are needed.
- Authentication
- SingleOne login is needed.
- Confidentiality
- CompleteAll data can be read.
- Integrity
- CompleteAny data can be modified.
- Availability
- CompleteThe system can be shut down completely.
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.1 | Critical | CNA (cert.vde.com) |
| CVSS 2.0 | 9.0 | High | NVD |
Official description
On various RAD-ISM-900-EN-* devices by PHOENIX CONTACT an admin user could use the configuration file uploader in the WebUI to execute arbitrary code with root privileges on the OS due to an improper validation of an integrity check value in all versions of the firmware.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Validation of Integrity Check Value
The product does not validate or incorrectly validates the integrity check values or checksums of a message.
How developers prevent this class of flaw
- The protocol specification describes the algorithm used for calculating the checksum. It is then a matter of implementing the calculation and verifying that the calculated checksum and the received checksum match.
More Improper Validation of Integrity Check Value vulnerabilities (CWE-354)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in RAD-ISM-900-EN-BD/B
- 9.0 High severity
Recent Improper Validation of Integrity Check Value vulnerabilities
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
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