CVE-2025-45471
📋 TL;DR
CVE-2025-45471 is an insecure permissions vulnerability in measure-cold-start v1.4.1 that allows attackers to escalate privileges and potentially compromise cloud accounts. This affects organizations using the vulnerable version of this cold start measurement tool in their cloud environments. Attackers could gain unauthorized access to cloud resources and sensitive data.
💻 Affected Systems
- measure-cold-start
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the cloud account, allowing attackers to access sensitive data, deploy malicious resources, incur financial costs, and pivot to other connected systems.
Likely Case
Unauthorized access to cloud resources, data exfiltration, and potential lateral movement within the cloud environment.
If Mitigated
Limited impact with proper IAM controls, network segmentation, and monitoring in place, potentially only affecting isolated resources.
🎯 Exploit Status
The GitHub issue and gist provide technical details that could be used to create exploits. Attackers need some initial access to exploit the insecure permissions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.4.2 or later
Vendor Advisory: https://github.com/lumigo-io/SAR-measure-cold-start/issues/32
Restart Required: Yes
Instructions:
1. Update measure-cold-start to v1.4.2 or later using your package manager. 2. Review and update IAM permissions for the tool. 3. Restart any services using measure-cold-start. 4. Verify the fix by checking the version and testing functionality.
🔧 Temporary Workarounds
Restrict IAM Permissions
allApply principle of least privilege by reducing the IAM permissions assigned to measure-cold-start
aws iam put-user-policy --user-name <username> --policy-name <policy> --policy-document file://restricted-policy.json
gcloud iam service-accounts set-iam-policy <service-account> restricted-policy.yaml
Disable or Remove Vulnerable Version
allTemporarily disable or remove measure-cold-start v1.4.1 until patched
npm uninstall -g measure-cold-start
pip uninstall measure-cold-start
🧯 If You Can't Patch
- Implement strict network segmentation to isolate systems running measure-cold-start
- Enable enhanced logging and monitoring for privilege escalation attempts and unusual cloud API calls
🔍 How to Verify
Check if Vulnerable:
Check the installed version of measure-cold-start: measure-cold-start --version or check package.json/requirements.txtCheck Version:
measure-cold-start --versionVerify Fix Applied:
Verify version is v1.4.2 or later and review IAM permissions to ensure they follow least privilege📡 Detection & Monitoring
Log Indicators:
- Unusual IAM permission changes
- Unexpected cloud API calls from measure-cold-start service account
- Privilege escalation attempts in cloud audit logs
Network Indicators:
- Unexpected outbound connections from systems running measure-cold-start
- Anomalous cloud API traffic patterns
SIEM Query:
source="cloud_audit_logs" AND (resource.type="iam" OR resource.type="service_account") AND (protoPayload.methodName:"setIamPolicy" OR protoPayload.methodName:"create" OR protoPayload.methodName:"update") AND resource.labels.project_id="[YOUR_PROJECT]"