CVE-2023-1617
Last modified
CVE-2023-1617 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Improper Authentication vulnerability in B&R Industrial Automation B&R VC4 (VNC-Server modules). This vulnerability may allow an unauthenticated network-based attacker to bypass the authentication mechanism of the VC4 visualization on affected devices. The impact of this vulnerability depends on the functionality provided in the visualization. This issue affects B&R VC4: from 3.* through 3.96.7, from 4.0* through 4.06.7, from 4.1* through 4.16.3, from 4.2* through 4.26.8, from 4.3* through 4.34.6, from 4.4* through 4.45.1, from 4.5* through 4.45.3, from 4.7* through 4.72.9. . EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
Improper Authentication vulnerability in B&R Industrial Automation B&R VC4 (VNC-Server modules). This vulnerability may allow an unauthenticated network-based attacker to bypass the authentication mechanism of the VC4 visualization on affected devices. The impact of this vulnerability depends on the functionality provided in the visualization. This issue affects B&R VC4: from 3.* through 3.96.7, from 4.0* through 4.06.7, from 4.1* through 4.16.3, from 4.2* through 4.26.8, from 4.3* through 4.34.6, from 4.4* through 4.45.1, from 4.5* through 4.45.3, from 4.7* through 4.72.9.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Br-Automation | Vc4 | < 3.96.8 |
| Br-Automation | Vc4 | >= 4.0.0, <= 4.06.4 |
| Br-Automation | Vc4 | >= 4.10.0, <= 4.16.3 |
| Br-Automation | Vc4 | >= 4.20.0, <= 4.26.8 |
| Br-Automation | Vc4 | >= 4.30.0, < 4.34.7 |
| Br-Automation | Vc4 | >= 4.40.0, <= 4.45.1 |
| Br-Automation | Vc4 | >= 4.50.0, <= 4.53.0 |
| Br-Automation | Vc4 | >= 4.70.0, < 4.73.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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