// For flags

CVE-2021-27791

 

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una función que es usada para analizar el encabezado de Autenticación en el servicio de aplicaciones web de Brocade Fabric OS versiones anteriores a Brocade Fabric OS v9.0.1a y v8.2.3a, presenta un fallo en procesar apropiadamente un encabezado de autenticación malformado procedente del cliente, resultando en una lectura de direcciones de memoria fuera del rango previsto. Un atacante no autenticado podría descubrir una petición, que podría omitir el proceso de autenticación

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-02-26 CVE Reserved
  • 2021-08-12 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Broadcom
Search vendor "Broadcom"
 Fabric Operating System
Search vendor "Broadcom" for product "Fabric Operating System"
 >= 8.2.1 < 8.2.3a
Search vendor "Broadcom" for product "Fabric Operating System" and version " >= 8.2.1 < 8.2.3a"
-
Affected
Broadcom
Search vendor "Broadcom"
 Fabric Operating System
Search vendor "Broadcom" for product "Fabric Operating System"
 >= 9.0.0 < 9.0.1a
Search vendor "Broadcom" for product "Fabric Operating System" and version " >= 9.0.0 < 9.0.1a"
-
Affected