Meross MSG100 up to 3.2.2 Messages authentication replay

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Meross MSG100 up to 3.2.2 and classified as critical. This affects an unknown function of the component Messages Handler. The manipulation results in authentication replay. This vulnerability is cataloged as CVE-2021-35067. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Meross MSG100 up to 3.2.2. Affected is an unknown code of the component Messages Handler. The manipulation with an unknown input leads to a authentication replay vulnerability. CWE is classifying the issue as CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 10/08/2021. The advisory is shared for download at infosec.rm-it.de. This vulnerability is traded as CVE-2021-35067 since 06/21/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1040.

Upgrading to version 3.2.3 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Authentication replay
CWE: CWE-294 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

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: MSG100 3.2.3

Timelineinfo

06/21/2021 🔍
10/08/2021 +109 days 🔍
10/08/2021 +0 days 🔍
10/14/2021 +6 days 🔍

Sourcesinfo

Advisory: infosec.rm-it.de
Status: Confirmed

CVE: CVE-2021-35067 (🔍)
GCVE (CVE): GCVE-0-2021-35067
GCVE (VulDB): GCVE-100-184104

Entryinfo

Created: 10/08/2021 10:08
Updated: 10/14/2021 08:54
Changes: 10/08/2021 10:08 (39), 10/14/2021 08:54 (1)
Complete: 🔍
Cache ID: 216::103

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