pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery (SSRF) attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive infrastructure data including droplet ID, network configuration, region, authentication keys, and SSH keys configured in user-data/cloud-init. Version 0.5.0b3.dev97 contains a patch.

pyload

A command injection vulnerability exists in DigitalOcean Droplet Agent through 1.3.2. The troubleshooting actioner component (internal/troubleshooting/actioner/actioner.go) processes metadata from the metadata service endpoint and executes commands specified in the TroubleshootingAgent.Requesting array without adequate input validation. While the code validates that artifacts exist in the validInvestigationArtifacts map, it fails to sanitize the actual command content after the "command:" prefix. This allows an attacker who can control metadata responses to inject and execute arbitrary OS commands with root privileges. The attack is triggered by sending a TCP packet with specific sequence numbers to the SSH port, which causes the agent to fetch metadata from http://169.254.169.254/metadata/v1.json. The vulnerability affects the command execution flow in internal/troubleshooting/actioner/actioner.go (insufficient validation), internal/troubleshooting/command/exec.go (direct exec.CommandContext call), and internal/troubleshooting/command/command.go (command parsing without sanitization). This can lead to complete system compromise, data exfiltration, privilege escalation, and potential lateral movement across cloud infrastructure.