Minder does not sandbox http.send in Rego programs

Summary

### Impact Minder users may fetch content in the context of the Minder server, which may include URLs which the user would not normally have access to (for example, if the Minder server is behind a firewall or other network partition). ### Patches https://github.com/mindersec/minder/commit/f770400923984649a287d7215410ef108e845af8 ### Workarounds Users should avoid deploying Minder with access to sensitive resources. Unfortunately, this could include access to systems like OpenFGA or Keycloak, depending on the deployment configuration. ### References Sample ruletype: ```yaml version: v1 type: rule-type name: test-http-send display_name: Test that we can call http.send short_failure_message: Failed http.send severity: value: medium context: provider: github description: | ... guidance: | .... def: in_entity: repository rule_schema: type: object properties: {} ingest: type: git git: {} eval: type: rego violation_format: text rego: type: constraints def: | package minder import rego.v1 violations contains {"msg": "Check-execution"} resp := http.send({ "method": "GET", "url": "http://openfga:8080/", "raise_error": false, }) violations contains {"msg": sprintf("Response: %s", [resp.status])} details := sprintf("High score: %s", [resp.body.summary]) violations contains {"msg": sprintf("Response body: %s", [resp.body]) } if { resp.status_code > 0 } ``` Example policy: ```yaml version: v1 type: profile name: Test-HTTP-send display_name: Test if we can do http.send context: provider: github alert: "off" remediate: "off" repository: - type: test-http-send def: {} ``` Evaluation results: ```sh $ minder profile status list -n test-http-send --json { "profileStatus": { "profileId": "3b3e0918-4deb-49cc-b4c9-1d1d912cf784", "profileName": "Test-HTTP-send", "profileStatus": "failure", "lastUpdated": "2024-10-31T03:44:01.456359Z" }, "ruleEvaluationStatus": [ { "profileId": "3b3e0918-4deb-49cc-b4c9-1d1d912cf784", "ruleId": "c0ebac2c-cfe2-4a98-b0a6-d6971209653e", "ruleName": "test-http-send", "entity": "repository", "status": "failure", "lastUpdated": "2024-10-31T03:44:01.456359Z", "entityInfo": { "entity_id": "a7f7a4bc-4430-4e9a-86a9-ffa026db6343", "entity_type": "repository", "name": "a-random-sandbox/colorls", "provider": "github-app-a-random-sandbox", "repo_name": "colorls", "repo_owner": "a-random-sandbox", "repository_id": "a7f7a4bc-4430-4e9a-86a9-ffa026db6343" }, "details": "Multiple issues:\n* Check-execution\n* Response body: {\"code\": \"undefined_endpoint\", \"message\": \"Not Found\"}\n* Response: 404 Not Found\n", "guidance": "....\n", "remediationStatus": "skipped", "remediationLastUpdated": "2024-10-31T03:44:01.456359Z", "ruleTypeName": "test-http-send", "ruleDescriptionName": "Test that we can call http.send", "alert": { "status": "skipped", "lastUpdated": "2024-10-31T03:44:01.456359Z" }, "ruleDisplayName": "Test that we can call http.send", "releasePhase": "RULE_TYPE_RELEASE_PHASE_ALPHA" } ] } ```