How to Defend Against the runC Container Vulnerability

Earlier this week security researchers Adam Iwaniuk and Borys Poplawski published details on a vulnerability in runC, the underlying container runtime for Docker, Kubernetes, cri-o, containerd, and other container-dependent programs. The vulnerability, CVE-2019-5736 allows malicious containers to overwrite the host runC binary and gain root-level code execution on the host. This would give attackers the ability to run any command as a root-level user including the ability to create new containers using an attacker-controlled image or attach executables into an existing container that they have write access to.

A patch has been issued for CVE-2019-5736, and all users should update to the latest version of all their container management programs as soon as possible.
Read more “How to Defend Against the runC Container Vulnerability”

Threat Stack Announces New and Enhanced CloudTrail Rules

As AWS continues to expand its services landscape, Threat Stack has made a commitment to keeping in step by crafting additional coverage that keeps your cloud environment secure. The latest additions we’ve made to Threat Stack’s CloudTrail rules are focused on giving more granular alerting and context to your interactions with the AWS control plane.

Threat Stack has significantly expanded the CloudTrail Base Ruleset in its Cloud Security Platform®. Not only have we increased the number of rules from 26 to 87 — we have also provided rules for five AWS Services that were not covered previously (DynamoDB, Elastic Container Service, Elastic Kubernetes Service, Security Token Service, and AWS Support). And don’t forget — the Cloud Security Platform still gives you the flexibility to create custom rules based on CloudTrail event data.

While we’re not going to comment on all 87 rules in this post, we are going to focus on important highlights, including:

  • New rules to cover five additional AWS Services
  • Expanded rules for Identity and Access Management (IAM)
  • Expanded rules for Virtual Public Cloud (VPC)

The new rules for five additional AWS Services are discussed in Part 1 below, while Part 2 gives an overview of the expanded rules for AWS Services that we already support. Read more “Threat Stack Announces New and Enhanced CloudTrail Rules”