CVE-2023-5222
CriticalExploitedPublic exploitA vulnerability classified as critical was found in Viessmann Vitogate 300 up to 2.1.3.0.
Published Sep 27, 2023 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2023-5222 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Vitogate 300 Firmware (Viessmann), Vitogate 300.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Sep 16, 2024. Public exploit code is available.
- EPSS estimates a 80% probability of exploitation in the next 30 days.
- Fixed versions are available, including Vitogate 300 Firmware <=2.1.3.0, Vitogate 300 Firmware 2.1.3.0.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
80%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-5222 brief as a PDF
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Description
A vulnerability classified as critical was found in Viessmann Vitogate 300 up to 2.1.3.0. This vulnerability affects the function isValidUser of the file /cgi-bin/vitogate.cgi of the component Web Management Interface. The manipulation leads to use of hard-coded password. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-240364. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Sep 16, 2024 | n/a | Not reported |
| CIRCL KEV | Sep 16, 2024 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Vitogate 300 FirmwareViessmann | See advisory | 2.1.3.0 |
| Vitogate 300 | >= 2.1.0 | n/a |
Patched Releases
Vitogate 300 Firmware
<=2.1.3.0
Timeline
Publicly disclosed
Sep 27, 2023
Added to Industry KEV feed
Sep 16, 2024
Added to CIRCL KEV
Sep 16, 2024
Last updated
Nov 21, 2024
Weakness Type
- CWE-259 Use of Hard-coded Password
References
- advisoryhttps://vuldb.com/?ctiid.240364
- advisoryhttps://vuldb.com/?id.240364
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A vulnerability classified as critical was found in Viessmann Vitogate 300 up to 2.1.3.0.
Affected: Vitogate 300 Firmware (Viessmann); Vitogate 300 versions >= 2.1.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Sep 16, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Vitogate 300 Firmware <=2.1.3.0, Vitogate 300 Firmware 2.1.3.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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