// For flags

CVE-2020-27781

ceph: User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila

Severity Score

7.1
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

9
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

Las credenciales de un usuario pueden ser manipuladas y robadas por consumidores de Native CephFS de OpenStack Manila, resultando en una posible escalada de privilegios. Un usuario de Open Stack Manila puede requerir acceso a un recurso compartido para un usuario cephx arbitrario, incluyendo los usuarios existentes. La clave de acceso se recupera por medio de los controladores de interfaz. Luego, todos los usuarios del proyecto de OpenStack solicitante pueden visualizar la clave de acceso. Esto permite a un atacante apuntar a cualquier recurso al que el usuario tenga acceso. Esto puede ser realizado inclusive para usuarios "admin", comprometiendo al administrador de ceph. Este fallo afecta a Ceph versiones anteriores a 14.2.16, versiones 15.x anteriores a 15.2.8, y versiones 16.x anteriores a 16.2.0.

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator.

Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services. The ceph-ansible package provides Ansible playbooks for installing, maintaining, and upgrading Red Hat Ceph Storage. Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB. The tcmu-runner packages provide a service that handles the complexity of the LIO kernel target's userspace passthrough interface. It presents a C plugin API for extension modules that handle SCSI requests in ways not possible or suitable to be handled by LIO's in-kernel backstores. Issues addressed include denial of service and server-side request forgery vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-10-27 CVE Reserved
  • 2020-12-18 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-522: Insufficiently Protected Credentials
CAPEC
Affected Vendors, Products, and Versions (9)