registry / Credential exfiltration / @reason-machines/cli-linux-x64 / 0.2.369

@reason-machines/cli-linux-x64@0.2.369

Reason CLI native binary for linux-x64

AI Security Review

scanned 5d ago · by lpm-firewall-ai

Source shows default-on forwarding of saved third-party provider access tokens to the publisher-selected Reason API, without a recipient-specific affirmative consent gate. This is concrete credential disclosure; the status notice and opt-out do not authorize the initial transfer.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

Starting the local runtime with localLogins enabled, which is the default for a new setup.

Impact

Saved third-party provider credentials are disclosed to the package publisher’s service and could be used to access the corresponding accounts.

Mechanism

The runtime reads provider credentials from local stores, selects access tokens, and submits them through the authenticated local-subscription route to the Reason API.

Attack narrative

When the local runtime starts, its default configuration enables forwarding of saved AI-provider logins. It reads provider access tokens and sends them to the Reason API’s local-subscription route. The status text describes the feature and offers an opt-out, but that notice does not require affirmative consent before the initial transfer.

AI rationale

Evidence

bin/vm-hands/vm-hands-entry-lite-92zdmn70.jsbin/vm-hands/vm-hands-entry-lite-93ep0dkw.jsbin/vm-hands/vm-hands-entry-lite-2fyemnas.jsbin/vm-hands/vm-hands-entry-lite-gzyps3ev.js.lpm-inspection-K3xpTJ/0-8156daa777e1.txt~/.claude/.credentials.json~/.codex/auth.json~/.grok/auth.json

Network endpoints1

api.reasonmachines.ai

Decision evidence

public snapshot

AI called this Malicious at 91.0% confidence as Malware with low false-positive risk.

Evidence for block

The runtime reads saved OAuth credentials from local AI coding-agent stores and keeps provider access tokens.
It forwards discovered provider access tokens through the local-subscription request.
Daemon startup launches this transfer when localLogins is enabled; the Linux executable analysis contains the same startup gate.
For a new local setup, the code enables localLogins when no value was supplied.
The local-subscription route uses the Reason API, whose production host is api.reasonmachines.ai.
The status text discloses that local logins serve Sessions and gives an off switch, but the transfer caller has no affirmative consent gate.

Evidence against

The package manifest has no install lifecycle hook; the transfer occurs when the local CLI runtime starts.
The status text discloses the feature and provides an opt-out, though neither gates the initial transfer.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEval

Source & flagged code

24 flagged

bin/runtime/srt/sandbox-runtime.mjsView file

60mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(F===1)return[];throw Error(`ripgrep failed with exit code ${F}: ${q}`)}import{join as V0,dirname as T6}from"path";import{fileURLToPath as S6}from"url";import*...

High

Child Process

Package source references child process execution.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L60

55\r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(eq(W))}function L7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function tq($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(F===1)return[];throw Error(`ripgrep failed with exit code ${F}: ${q}`)}import{join as V0,dirname as T6}from"path";import{fileURLToPath as S6}from"url";import*

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L55

47\r L48: Connection blocked by network allowlist`);return}if(W||Y.destroyed){Y.destroy();return}let P=jJ(j)??j;if($.mitmCA&&($.shouldTerminateTLS?.(P,C)??!0)){Y.write(`HTTP/1.1 200 Connecti... L49: \r ... L55: \r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(eq(W))}function L7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function tq($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${H}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=$6((M)=>{G.add(M),M.once("close",()

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L47

bin/vm-hands/index-kf4q2kw5.jsView file

1// @bun L2: import{Aa as iJ0}from"./vm-hands-entry-lite-nhfd61cx.js";import{ak as NV0,bk as rn,ck as EJ,ek as an,fk as X0}from"./vm-hands-entry-lite-7fx4xtf6.js";var on={};var $T;var WT=an(()=... L3: `)!=-1,q=this._styles,O=q.length;while(O--){var E=G[q[O]];if(A=E.open+A.replace(E.closeRe,E.open)+E.close,R)A=A.replace($,function(D){return E.close+D+E.open})}return A}X.setTheme=... L4: `).join(` L5: `+N),U.push(z+"m+"+Y.exports.humanize(this.diff)+"\x1B[0m")}else U[0]=$()+M+" "+U[0]}function $(){if(Q.inspectOpts.hideDate)return"";return new Date().toISOString()+" "}function W(... L6: `)}function K(U){if(U)process.env.DEBUG=U;else delete process.env.DEBUG}function H(){return process.env.DEBUG}function B(U){U.inspectOpts={};let M=Object.keys(Q.inspectOpts);for(le... ... L8: `:` L9: `,U=B.

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

bin/vm-hands/index-kf4q2kw5.jsView on unpkg · L1

271`).map((J)=>J+` L272: `);if(Y)X.pop();else X.push(X.pop().slice(0,-1));return X}function is(Q){let Y=[],X,J;for(let G=0;G<Q.length;G++){if(X=Q[G],X.added)J=1;else if(X.removed)J=-1;else J=0;Y.push([J,X.... L273: `)}var V$=(Q)=>(Y,X,J,G)=>{let Z=J?Object.assign(J,{async:!1}):{async:!1},$=Y._zod.run({value:X,issues:[]},Z);if($ instanceof Promise)throw new AJ;if($.issues.length){let W=new(G?....

High

Eval

Package source references dynamic code evaluation.

bin/vm-hands/index-kf4q2kw5.jsView on unpkg · L271

239`,CHAR_NO_BREAK_SPACE:"\xA0",CHAR_PERCENT:"%",CHAR_PLUS:"+",CHAR_QUESTION_MARK:"?",CHAR_RIGHT_ANGLE_BRACKET:">",CHAR_RIGHT_CURLY_BRACE:"}",CHAR_RIGHT_SQUARE_BRACKET:"]",CHAR_SEMICO... L240: GFS4: `),console.error(A)};if(!X[W]){if(U=global[W]||[],B(X,U),X.close=function(A){function R(q,O){return A.call(X,q,function(E){if(!E)z();if(typeof O==="function")O.apply(this,arg... L241: `:""},this._extScope=S,this._scope=new X.Scope({parent:S}),this._nodes=[new F]}toString(){return this._root.render(this.opts)}name(S){return this._scope.name(S)}scopeName(S){return...

bin/vm-hands/vm-hands-entry-lite-ybthejnc.jsView file

Lines 285-325javascript

285 // parse top-level await or return. Those programs retain the prior async

286 // block behavior; a syntax failure occurs before any user code executes.

287 if (!statementList || !(error instanceof SyntaxError)) throw error;

288 program =

bin/vm-hands/vm-hands-entry-lite-4qdqqwn2.jsView file

Lines 1-21javascript

1// @bun

2import{ae as p,ce as V,fe as f}from"./vm-hands-entry-lite-w4swepp1.js";import{Xh as E}from"./vm-hands-entry-lite-gzyps3ev.js";import{li as y}from"./vm-hands-entry-lite-5zmn6a7p.js"

bin/vm-hands/vm-hands-executor-pj8zqspp.jsView file

1Cross-file remote execution chain: bin/vm-hands/vm-hands-executor-pj8zqspp.js spawns bin/vm-hands/vm-hands-entry-lite-dq1fdx0j.js; helper contains network access plus dynamic code execution. L1: // @bun L2: import{s as Mq}from"./vm-hands-entry-lite-2r2p2dm1.js";import{Lb as Uq,pc as Fq,rb as Lq,tc as Tq}from"./vm-hands-entry-lite-ybthejnc.js";import"./vm-hands-entry-lite-mcv6pse6.js";... L3: `).filter(Boolean);B=Z.length;let Y=Q.map((L)=>{try{return Number(JSON.parse(L).elapsed_ms)||0}catch{return 0}});if(Y.length)X("vm_hands.srt_server_starts",{count:Y.length,elapsed_... L4: `).filter(Boolean).slice(0,1000);if(!Y.length)return null;let L={},F=0;for(let M of Y)try{let R=JSON.parse(M),K=typeof R.code==="string"&&/^[a-z_]{1,40}$/.test(R.code)?R.code:"othe... L5: `).find((V)=>V.startsWith("0:

High

Cross File Remote Execution Context

Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.

bin/vm-hands/vm-hands-executor-pj8zqspp.jsView on unpkg · L1

bin/araView file

•path = bin/ara kind = native_binary sizeBytes = 102873216 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/araView on unpkg

bin/vm-hands/ask-relay-4fge3xe0.jsView file

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-arm64-musl@0.2.363 matchedPath = bin/vm-hands/ask-relay-470m12qy.js matchedIdentity = npm:[redacted]:0.2.363 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High