Sign In
Advisories

mcp-remote 0.8.0 through 0.14.3 Cleartext Credential Transmission via --device-code OAuth Grant

Go Back
severity
medium
date
Affecting

  • mcp-remote >= 0.8.0, <= 0.14.3

CWE
  • CWE-319 Cleartext Transmission of Sensitive Information
CVSS
6.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
HaiND from the Post and Telecommunication Institute of Technology
Description
mcp-remote 0.8.0 through 0.14.3 contains a cleartext transmission vulnerability in authorizeWithDeviceCode that sends client secrets and receives tokens without enforcing HTTPS endpoints. When discovered device authorization and token endpoints are non-loopback http URLs, on-path network attackers can capture the client secret plus issued access and refresh tokens.

Ready to get Started?

Explore VulnCheck, a next-generation Cyber Threat Intelligence platform, which provides exploit and vulnerability intelligence to help you prioritize and remediate vulnerabilities that matter.
  • Vulnerability Prioritization
    Prioritize vulnerabilities that matter based on the threat landscape and defer vulnerabilities that don't.
  • Early Warning System
    Real-time alerting of changes in the vulnerability landscape so that you can take action before the attacks start.
Schedule a Demo