Vulnerability Details : CVE-2021-27791
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.
Published
2021-08-12 15:15:08
Updated
2022-07-12 17:42:04
Exploit prediction scoring system (EPSS) score for CVE-2021-27791
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 21 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-27791
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:N |
8.0
|
4.9
|
NIST |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
2.8
|
2.5
|
NIST |
CWE ids for CVE-2021-27791
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27791
-
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491
BSA-2021-1491Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20210819-0002/
May 2021 Brocade Fabric OS Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
Products affected by CVE-2021-27791
- cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*