CVE-2016-9877

Description

An issue was discovered in Pivotal RabbitMQ 3.x before 3.5.8 and 3.6.x before 3.6.6 and RabbitMQ for PCF 1.5.x before 1.5.20, 1.6.x before 1.6.12, and 1.7.x before 1.7.7. MQTT (MQ Telemetry Transport) connection authentication with a username/password pair succeeds if an existing username is provided but the password is omitted from the connection request. Connections that use TLS with a client-provided certificate are not affected.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.40%
Vendor Advisory debian.org Vendor Advisory pivotal.io
Affected: n/a Pivotal RabbitMQ 3.x before 3.5.8 and 3.6.x before 3.6.6; RabbitMQ for PCF 1.5.x before 1.5.20, 1.6.x before 1.6.12 and 1.7.x before 1.7.7
Published at:
Updated at:

References

Link Tags
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03880en_us
http://www.securityfocus.com/bid/95065 vdb entry
https://pivotal.io/security/cve-2016-9877 mitigation vendor advisory
http://www.debian.org/security/2017/dsa-3761 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-9877?
CVE-2016-9877 has been scored as a critical severity vulnerability.
How to fix CVE-2016-9877?
To fix CVE-2016-9877, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9877 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-9877 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2016-9877?
CVE-2016-9877 affects n/a Pivotal RabbitMQ 3.x before 3.5.8 and 3.6.x before 3.6.6; RabbitMQ for PCF 1.5.x before 1.5.20, 1.6.x before 1.6.12 and 1.7.x before 1.7.7.
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