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AUSCERT External Security Bulletin Redistribution
ESB-2021.2395
JSA11183 - 2021-07 Security Bulletin: Contrail Cloud:
Hardcoded credentials for RabbitMQ service (CVE-2021-0279)
15 July 2021
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AusCERT Security Bulletin Summary
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Product: Contrail Cloud
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-0279
Original Bulletin:
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11183
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2021-07 Security Bulletin: Contrail Cloud: Hardcoded credentials for RabbitMQ service (CVE-2021-0279)
Article ID : JSA11183
Last Updated: 14 Jul 2021
Version : 1.0
Product Affected:
This issue affects Contrail Cloud.
Problem:
Juniper Networks Contrail Cloud (CC) releases prior to 13.6.0 have RabbitMQ
service enabled by default with hardcoded credentials. The messaging services
of RabbitMQ are used when coordinating operations and status information among
Contrail services. An attacker with access to an administrative service for
RabbitMQ (e.g. GUI), can use these hardcoded credentials to cause a Denial of
Service (DoS) or have access to unspecified sensitive system information.
This issue affects the Juniper Networks Contrail Cloud releases on versions
prior to 13.6.0.
This issue was seen during production usage.
This issue has been assigned CVE-2021-0279 .
Solution:
The following software releases have been updated to resolve this specific
issue: Juniper Networks Contrail Cloud version 13.6.0, and all subsequent
releases.
When installing Contrail Cloud version 13.6.0, to set a non-default password
for RabbitMQ, one of these options are possible:
a) You may set a non-default password using the config/vault-data.yml file.
b) Or following configuration should be added to the CC site.yml file:
extra_config:
ContrailAnalyticsParameters:
ContrailSettings:
RABBITMQ_PASSWORD: "{{ vault['other']['credentials']['contrail_rabbit']['password'] }}"
RABBITMQ_USER: "{{ vault['other']['credentials']['contrail_rabbit']['user'] }}"
ContrailControllerParameters:
ContrailSettings:
RABBITMQ_PASSWORD: "{{ vault['other']['credentials']['contrail_rabbit']['password'] }}"
RABBITMQ_USER: "{{ vault['other']['credentials']['contrail_rabbit']['user'] }}"
Contact Juniper Networks Technical Assistance Center (JTAC) for guided
assistance if necessary.
This issue is being tracked as CC-773.
Workaround:
To mitigate this issue with a fresh installation of Contrail Cloud version
prior to 13.6.0, the following configuration options should be added to the CC
site.yml file :
extra_config:
ContrailAnalyticsParameters:
ContrailSettings:
RABBITMQ_PASSWORD: "{{ vault['other']['credentials']['contrail_rabbit']['password'] }}"
RABBITMQ_USER: "{{ vault['other']['credentials']['contrail_rabbit']['user'] }}"
ContrailControllerParameters:
ContrailSettings:
RABBITMQ_PASSWORD: "{{ vault['other']['credentials']['contrail_rabbit']['password'] }}"
RABBITMQ_USER: "{{ vault['other']['credentials']['contrail_rabbit']['user'] }}"
Please contact Juniper Networks Technical Assistance Center (JTAC) for guided
assistance if necessary.
Until a fresh installation or upgrade is possible, to reduce the risk of
exploitation utilize common security BCPs to limit the exploitable surface by
limiting access to network and device to trusted systems, administrators,
networks and hosts.
Implementation:
Software releases or updates are available for download at https://
support.juniper.net/support/downloads/
Modification History:
2021-07-14: Initial Publication.
CVSS Score:
8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)
Severity Level:
High
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."
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