Deye/Revolt/Bosswerk Inverter MW3_15U_5406_1.47/MW3_15U_5406_1.471 Access Point Setting hard-coded password

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

A vulnerability was found in Deye/Revolt/Bosswerk Inverter MW3_15U_5406_1.47/MW3_15U_5406_1.471. It has been rated as problematic. This issue affects an unknown part of the component Access Point Setting Handler. The manipulation with the input value 12345678 leads to a hard-coded password vulnerability. Using CWE to declare the problem leads to CWE-259. The software contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components. Impacted is confidentiality, integrity, and availability.

The weakness was shared 02/13/2023 by Jan Mahn as Balkonkraftwerke: Sicherheitsl├╝cke in Mikrowechselrichtern von Deye as confirmed article (Heise). The advisory is shared at heise.de. The vendor cooperated in the coordination of the public release. The article contains:

Als Nutzer verbindet man sich mit einem Access-Point, den der Wechselrichter aufspannt und nutzt dafür den Schlüssel 12345678. In der Weboberfläche trägt man die Zugangsdaten zum eigenen WLAN ein und schaltet den Access-Point dann ab oder ändert dessen Schlüssel. Dieser Zugang wird ja nicht mehr gebraucht, weil sich das Gerät fortan mit dem WLAN verbinden soll. Das Problem: Der Speichern-Button ist ohne Funktion, der Wechselrichter schließt den Access-Point nicht und auch 12345678 als Schlüssel lässt sich nicht ändern.
The identification of this vulnerability is CVE-2023-0808. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1078.001 for this issue.

The exploit is available at heise.de. It is declared as proof-of-concept.

Upgrading to version MW3_16U_5406_1.53 eliminates this vulnerability.

Productinfo

Vendor

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CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.9
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔒

CNA Base Score: 3.9
CNA Vector (VulDB): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfo

Class: Hard-coded password
CWE: CWE-259 / CWE-255
ATT&CK: T1078.001

Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Inverter MW3_16U_5406_1.53

Timelineinfo

02/13/2023 Advisory disclosed
02/13/2023 +0 days CVE reserved
02/13/2023 +0 days VulDB entry created
03/10/2023 +25 days VulDB last update

Sourcesinfo

Advisory: Balkonkraftwerke: Sicherheitslücke in Mikrowechselrichtern von Deye
Researcher: Jan Mahn
Status: Confirmed
Coordinated: 🔒

CVE: CVE-2023-0808 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/13/2023 12:03 PM
Updated: 03/10/2023 09:50 PM
Changes: 02/13/2023 12:03 PM (44), 02/13/2023 12:05 PM (6), 03/10/2023 09:37 PM (2), 03/10/2023 09:50 PM (28)
Complete: 🔍

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