Zoom Client for Meetings up to 5.2.x on Windows MSI File signature verification

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Zoom Client for Meetings up to 5.2.x on Windows and classified as critical. Affected by this issue is some unknown functionality of the component MSI File Handler. Such manipulation leads to signature verification. This vulnerability is traded as CVE-2021-33907. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Zoom Client for Meetings up to 5.2.x on Windows (Unified Communication Software). Affected by this issue is an unknown code of the component MSI File Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability.

The weakness was shared 09/27/2021. This vulnerability is handled as CVE-2021-33907 since 06/07/2021. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.3.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Client for Meetings 5.3.0

Timelineinfo

06/07/2021 🔍
09/27/2021 +112 days 🔍
09/27/2021 +0 days 🔍
10/02/2021 +5 days 🔍

Sourcesinfo

Advisory: cwe.mitre.org
Status: Confirmed

CVE: CVE-2021-33907 (🔍)
GCVE (CVE): GCVE-0-2021-33907
GCVE (VulDB): GCVE-100-183404

Entryinfo

Created: 09/27/2021 20:04
Updated: 10/02/2021 18:54
Changes: 09/27/2021 20:04 (40), 10/02/2021 18:54 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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