Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI: ALAS-2016-763: Security patch for cloud-init

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Amazon Linux AMI: ALAS-2016-763: Security patch for cloud-init

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/10/2016
Created
07/25/2018
Added
11/11/2016
Modified
12/20/2017

Description

It was discovered that cloud-init in the Amazon Linux AMI wrote IAM role credentials from the instance metadata service to files readable by the root user in /var/lib/cloud. An application with root privileges, a container with access to the relevant files, or a root user of an AMI derived from a previously launched AMI could read and use the credentials. (IAM role credentials expire after 6 hours.)

Solution(s)

  • amazon-linux-upgrade-cloud-init

References

  • amazon-linux-upgrade-cloud-init

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