ABB ARG600 Wireless Gateway series: Improper Initialization
CVE-2022-0947 is a critical-severity improper initialization vulnerability in ABB ARG600 Wireless Gateway series from ABB, 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 2.4.x* as the first without the flaw, so updating ABB ARG600 Wireless Gateway series to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.88% chance of exploitation within 30 days, higher than 60% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update ABB ARG600 Wireless Gateway series to 2.4.x* or a later version.
- Read the advisory on search.abb.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 |
|---|---|---|---|
| ABB | ABB ARG600 Wireless Gateway series | 2.4.0 up to, but not including, 2.4.x*; 3.4.x through 3.4.10 | 2.4.x* |
| ABB | Arg600a1220na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arg600a1230na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arg600a1240na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arg600a1260na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arg600a2622na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arg600a2625na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arp600a2200na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arp600a2220na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arp600a2250na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arp600a2260na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arp600a2651na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arp600a2560na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3201na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3202na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3221na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3222na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3251na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3252na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3261na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arr600a3262na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arc600a2325na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arc600a2323na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Arc600a2324na Firmware | 2.4.0 through 3.4.10 | Not stated |
| ABB | Viola Systems Arctic Firmware | 2.4.0 through 3.4.10 | 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 NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.0 | Critical | CNA (ch.abb.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
| CVSS 2.0 | 6.8 | Medium | NVD |
Official description
A vulnerability in ABB ARG600 Wireless Gateway series that could allow an attacker to exploit the vulnerability by remotely connecting to the serial port gateway, and/or protocol converter, depending on the configuration.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Initialization
The product does not initialize or incorrectly initializes a resource.
How developers prevent this class of flaw
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, in Java, if the programmer does not explicitly initialize a variable, then the code could produce a compile-time error (if the variable is local) or automatically initialize the variable to the default value for the variable's type. In Perl, if explicit initialization is not performed, then a default value of undef is assigned, which is interpreted as 0, false, or an equivalent value depending on the context in which the variable is accessed.
- Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
- Explicitly initialize all your variables and other data stores, either during declaration or just before the first usage.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Recent Improper Initialization vulnerabilities
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
Linux Kernel Privilege Escalation Exploited
- 7.5 High severity
- 9.8 Critical severity
- 5.5 Medium severity
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