CVE-2021-27791
CVSS V2 Medium 5.5
CVSS V3 Medium 5.4
Description
The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process.
Overview
- CVE ID
- CVE-2021-27791
- Assigner
- sirt@brocade.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-12T15:15:07
- Last Modified Date
- 2022-07-12T17:42:04
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:* | 1 | OR | 8.2.1 | 8.2.3a |
| cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0 | 9.0.1a |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 5.4
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 2.5
References
| Reference URL | Reference Tags |
|---|---|
| https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491 | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20210819-0002/ | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27791 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27791 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:56:28 | Added to TrackCVE | |||
| 2022-12-05 08:01:24 | 2021-08-12T15:15Z | 2021-08-12T15:15:07 | CVE Published Date | updated |
| 2022-12-05 08:01:24 | 2022-07-12T17:42:04 | CVE Modified Date | updated | |
| 2022-12-05 08:01:24 | Analyzed | Vulnerability Status | updated |