Brocade Fabric OS risky encryption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Brocade Fabric OS. Affected by this issue is some unknown functionality. This manipulation causes risky encryption. The identification of this vulnerability is CVE-2021-27795. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Brocade Fabric OS (affected version not known). It has been declared as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a risky encryption vulnerability. The CWE definition for the vulnerability is CWE-327. The product uses a broken or risky cryptographic algorithm or protocol. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Brocade Fabric OS (FOS) hardware platforms running any version of Brocade Fabric OS software, which supports the license string format; contain cryptographic issues that could allow for the installation of forged or fraudulent license keys. This would allow attackers or a malicious party to forge a counterfeit license key that the Brocade Fabric OS platform would authenticate and activate as if it were a legitimate license key.

The weakness was shared 12/06/2023. It is possible to read the advisory at support.broadcom.com. This vulnerability is known as CVE-2021-27795. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 6.4
CNA Vector (Brocade Communications Systems, LLC): 🔍

CVSSv2info

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

Exploitinginfo

Class: Risky encryption
CWE: CWE-327 / CWE-310
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/26/2021 🔍
12/06/2023 +1013 days 🔍
12/06/2023 +0 days 🔍
12/24/2023 +18 days 🔍

Sourcesinfo

Advisory: support.broadcom.com
Status: Confirmed

CVE: CVE-2021-27795 (🔍)
GCVE (CVE): GCVE-0-2021-27795
GCVE (VulDB): GCVE-100-247039

Entryinfo

Created: 12/06/2023 08:07
Updated: 12/24/2023 17:04
Changes: 12/06/2023 08:07 (45), 12/24/2023 16:56 (1), 12/24/2023 17:04 (11)
Complete: 🔍
Cache ID: 216::103

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