Vulnerability Details : CVE-2021-27793
ntermittent authorization failure in aaa tacacs+ with Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after v8.2.0 could cause a user with a valid account to be unable to log into the switch.
Published
2021-08-12 15:15:08
Updated
2021-08-23 14:51:32
Products affected by CVE-2021-27793
- cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:fabric_operating_system:8.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:fabric_operating_system:9.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:fabric_operating_system:9.0.1a:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27793
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27793
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-27793
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27793
-
https://security.netapp.com/advisory/ntap-20210819-0001/
July 2021 Brocade Fabric OS Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1553
BSA-2021-1553Vendor Advisory
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