CODESYS Development System V3: Inadequate Encryption Strength
CVE-2022-4048 is a high-severity inadequate encryption strength vulnerability in CODESYS Development System V3 from Codesys, with a CVSS 3.1 base score of 7.7 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, without any action from a user. The record lists version V3.5.18.40 as the first without the flaw, so updating CODESYS Development System V3 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.08% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update CODESYS Development System V3 to V3.5.18.40 or a later version.
- Update Development System V3 to 3.5.18.40 or a later version.
- Read the advisory on customers.codesys.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| CODESYS | CODESYS Development System V3 | V0.0.0.0 up to, but not including, V3.5.18.40 | V3.5.18.40 |
| Codesys | Development System V3 | before 3.5.18.40 | 3.5.18.40 |
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
- LocalThe attacker needs local access or must trick a user into running something.
- 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
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.7 | High | CNA (cert.vde.com) |
| CVSS 3.1 | 7.7 | High | NVD |
Official description
Inadequate Encryption Strength in CODESYS Development System V3 versions prior to V3.5.18.40 allows an unauthenticated local attacker to access and manipulate code of the encrypted boot application.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Inadequate Encryption Strength
The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.
How developers prevent this class of flaw
- Use an encryption scheme that is currently considered to be strong by experts in the field.
More Inadequate Encryption Strength vulnerabilities (CWE-326)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in CODESYS Development System V3
- 7.8 High severity
- 7.5 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
Recent Inadequate Encryption Strength vulnerabilities
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.4 High severity
- 7.2 High severity
- 9.1 Critical severity
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