CVE-2023-43742
Last modified
CVE-2023-43742 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An authentication bypass in Zultys MX-SE, MX-SE II, MX-E, MX-Virtual, MX250, and MX30 with firmware versions prior to 17.0.10 patch 17161 and 16.04 patch 16109 allows an unauthenticated attacker to obtain an administrative session via a protection mechanism failure in the authentication function. In normal operation, the Zultys MX Administrator Windows client connects to port 7505 and attempts authentication, submitting the administrator username and password to the server. EPSS estimates a 0.92% chance of exploitation in the next 30 days.
Description
An authentication bypass in Zultys MX-SE, MX-SE II, MX-E, MX-Virtual, MX250, and MX30 with firmware versions prior to 17.0.10 patch 17161 and 16.04 patch 16109 allows an unauthenticated attacker to obtain an administrative session via a protection mechanism failure in the authentication function. In normal operation, the Zultys MX Administrator Windows client connects to port 7505 and attempts authentication, submitting the administrator username and password to the server. Upon authentication failure, the server sends a login failure message prompting the client to disconnect. However, if the client ignores the failure message instead and attempts to continue, the server does not forcibly close the connection and processes all subsequent requests from the client as if authentication had been successful.
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 |
|---|---|---|
| Zultys | Mx-Se Firmware | < 16.0.4 |
| Zultys | Mx-Se Firmware | >= 17.0.6, < 17.0.10 |
| Zultys | Mx-Se Ii Firmware | < 16.0.4 |
| Zultys | Mx-Se Ii Firmware | >= 17.0.6, < 17.0.10 |
| Zultys | Mx-E Firmware | < 16.0.4 |
| Zultys | Mx-E Firmware | >= 17.0.6, < 17.0.10 |
| Zultys | Mx-Virtual Firmware | < 16.0.4 |
| Zultys | Mx-Virtual Firmware | >= 17.0.6, < 17.0.10 |
| Zultys | Mx250 Firmware | < 16.0.4 |
| Zultys | Mx250 Firmware | >= 17.0.6, < 17.0.10 |
| Zultys | Mx30 Firmware | < 16.0.4 |
| Zultys | Mx30 Firmware | >= 17.0.6, < 17.0.10 |
References
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2023-0002.mdThird Party Advisory
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2023-0002.mdThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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