Brocade Fabric OS prior 7.4.2h/8.2.3a/9.0.1a Telnet/SSH/REST missing authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Brocade Fabric OS. It has been classified as critical. Impacted is an unknown function of the component Telnet/SSH/REST. Performing a manipulation results in missing authentication. This vulnerability is identified as CVE-2021-27794. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Brocade Fabric OS. This affects an unknown code block of the component Telnet/SSH/REST. The manipulation with an unknown input leads to a missing authentication vulnerability. CWE is classifying the issue as CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 08/13/2021 as brocade-security-advisory-2021-1552. The advisory is shared at broadcom.com. This vulnerability is uniquely identified as CVE-2021-27794. Neither technical details nor an exploit are publicly available.

Upgrading to version 7.4.2h, 8.2.3a or 9.0.1a eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Missing authentication
CWE: CWE-306 / 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: Fabric OS 7.4.2h/8.2.3a/9.0.1a

Timelineinfo

02/26/2021 🔍
08/13/2021 +167 days 🔍
08/13/2021 +0 days 🔍
08/18/2021 +5 days 🔍

Sourcesinfo

Advisory: brocade-security-advisory-2021-1552
Status: Confirmed

CVE: CVE-2021-27794 (🔍)
GCVE (CVE): GCVE-0-2021-27794
GCVE (VulDB): GCVE-100-180801

Entryinfo

Created: 08/13/2021 08:15
Updated: 08/18/2021 03:37
Changes: 08/13/2021 08:15 (37), 08/13/2021 08:16 (1), 08/18/2021 03:37 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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