// For flags

CVE-2021-41767

Private tunnel identifier may be included in the non-private details of active connections

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user's active use of that same connection.

Apache Guacamole versiones 1.3.0 y anteriores, pueden incluir incorrectamente un identificador de túnel privado en los detalles no privados de algunas respuestas REST. Esto puede permitir que un usuario autenticado que ya presenta permiso para acceder a una conexión particular lea o interactúe con el uso activo de otro usuario de esa misma conexión

*Credits: We would like to thank Damian Velardo (Australia and New Zealand Banking Group) for reporting this issue.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-09-28 CVE Reserved
  • 2022-01-11 CVE Published
  • 2024-01-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache
Search vendor "Apache"
 Guacamole
Search vendor "Apache" for product "Guacamole"
 <= 1.3.0
Search vendor "Apache" for product "Guacamole" and version " <= 1.3.0"
-
Affected