CVE-2023-48225
📋 TL;DR
This vulnerability in Laf cloud development platform allows attackers to read sensitive information from Kubernetes secrets and configmaps through improper environment variable handling. It affects Laf deployments in privatization environments where namespace configuration is fixed, potentially exposing credentials and configuration data.
💻 Affected Systems
- Laf Cloud Development Platform
📦 What is this software?
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⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of sensitive credentials, API keys, database passwords, and configuration data stored in Kubernetes secrets/configmaps, leading to full system compromise.
Likely Case
Unauthorized access to sensitive environment variables containing application credentials and configuration data.
If Mitigated
Limited exposure of non-sensitive configuration data if proper namespace isolation and access controls are implemented.
🎯 Exploit Status
Exploitation requires access to Laf application interface and knowledge of the vulnerability. The advisory includes code references showing the vulnerable pattern.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.0-beta.13 and later
Vendor Advisory: https://github.com/labring/laf/security/advisories/GHSA-hv2g-gxx4-fwxp
Restart Required: Yes
Instructions:
1. Update Laf to version 1.0.0-beta.13 or later. 2. Restart all Laf application instances. 3. Verify environment variable handling no longer exposes full object structures.
🔧 Temporary Workarounds
Disable namespaceConf.fixed
allRemove or disable the namespaceConf.fixed configuration in privatization environments to prevent the specific leakage scenario.
# Modify Laf configuration to remove namespaceConf.fixed setting
# Exact command depends on your deployment method
Restrict Kubernetes RBAC
linuxImplement strict Role-Based Access Control to limit who can read secrets and configmaps in affected namespaces.
kubectl create role secret-reader --verb=get,list --resource=secrets,configmaps
kubectl create rolebinding restrict-secrets --role=secret-reader --user=system:serviceaccount:default:laf-sa
🧯 If You Can't Patch
- Implement network segmentation to isolate Laf instances from sensitive Kubernetes resources
- Rotate all secrets and credentials stored in affected Kubernetes namespaces immediately
🔍 How to Verify
Check if Vulnerable:
Check Laf version: if below 1.0.0-beta.13 and running in privatization environment with namespaceConf.fixed, assume vulnerable. Review environment variable handling in deployment templates.Check Version:
Check Laf application version in admin interface or deployment configurationVerify Fix Applied:
After updating to 1.0.0-beta.13+, verify that environment variables no longer expose full object structures and that envFrom field properly sanitizes data.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to environment endpoints
- Multiple failed attempts to access secret/configmap data through env variables
Network Indicators:
- Suspicious API calls to Kubernetes secrets/configmaps from Laf application pods
SIEM Query:
source="laf-logs" AND (message="envFrom" OR message="secret" OR message="configmap") AND status="200"🔗 References
- https://github.com/labring/laf/blob/main/server/src/application/environment.controller.ts#L50
- https://github.com/labring/laf/blob/main/server/src/instance/instance.service.ts#L306
- https://github.com/labring/laf/security/advisories/GHSA-hv2g-gxx4-fwxp
- https://github.com/labring/laf/blob/main/server/src/application/environment.controller.ts#L50
- https://github.com/labring/laf/blob/main/server/src/instance/instance.service.ts#L306
- https://github.com/labring/laf/security/advisories/GHSA-hv2g-gxx4-fwxp
