registry / Credential exfiltration / @reason-machines/cli-linux-x64 / 0.2.336

@reason-machines/cli-linux-x64@0.2.336

Reason CLI native binary for linux-x64

AI Security Review

scanned 6d ago · by lpm-firewall-ai

The source traces saved provider access tokens from local authentication files into requests to the publisher's service. Because the default connection flow enables the transfer without recipient-specific consent, this is credential disclosure rather than ordinary authentication to the providers themselves.

Static reason

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

Trigger

A user starts the CLI worker through the normal connection flow, which defaults local logins on.

Impact

The Reason service receives active third-party access tokens; the inspected handoff does not include refresh tokens.

Mechanism

The worker reads local authentication stores, selects access tokens, and posts them to the service's local-subscription route. The code does not require affirmative consent specific to sending those credentials to this recipient.

Attack narrative

When the CLI worker starts, it can read saved credentials from local AI-provider authentication files. Normal connection settings enable this behavior by default, and the worker sends each selected access token to the Reason service's local-subscription endpoint without recipient-specific affirmative consent. The handoff omits refresh tokens, but still discloses active third-party credentials.

AI rationale

Evidence

bin/vm-hands/vm-hands-entry-lite-yr493k0q.jsbin/vm-hands/vm-hands-entry-lite-mm72ht4e.js.lpm-inspection-Z2L3Js/0-e9b756374aaf.txt~/.claude/.credentials.json~/.codex/auth.json~/.grok/auth.json~/.local/share/opencode/auth.json~/.pi/agent/auth.json

Network endpoints1

api.reasonmachines.ai/local-subscription

Decision evidence

public snapshot

AI called this Malicious at 96.0% confidence as Malware with low false-positive risk.

Evidence for block

The runtime reads saved Claude, Codex, and Grok authentication files and extracts access credentials.
It reduces discovered credentials to provider, access token, and expiry, then submits them through the local subscription operation.
Normal connection settings default local logins on, and worker startup invokes the handoff when enabled.
The handoff sends its credential object to the service's local-subscription route; the production API defaults to api.reasonmachines.ai.

Evidence against

The transfer is part of the CLI's local-login feature and forwards access tokens without refresh tokens.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Source & flagged code

23 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-g4t2q0ep.jsView file

1// @bun L2: import{P as iJ0}from"./vm-hands-entry-lite-c64behya.js";import{li as NV0,mi as rn,ni as EJ,pi as an,qi as X0}from"./vm-hands-entry-lite-px64jhhn.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-g4t2q0ep.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-g4t2q0ep.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-n0j2t2eb.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-executor-bk5c02sn.jsView file

Lines 1-11javascript

1// @bun

2import{a as Tq}from"./vm-hands-entry-lite-thtd61xk.js";import{$a as Lq,Fb as Uq,Ha as Bq,Jb as Fq}from"./vm-hands-entry-lite-n0j2t2eb.js";import"./vm-hands-entry-lite-h01d2fbm.js";import"./vm-hands-entry-lite-5n6vc7je.js";

bin/araView file

•path = bin/ara kind = native_binary sizeBytes = 102832256 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/araView on unpkg

bin/vm-hands/vm-hands-entry-lite-9enw55fp.jsView file

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-x64-musl@0.2.335 matchedPath = bin/vm-hands/vm-hands-entry-lite-qbr9m7zh.js matchedIdentity = npm:[redacted]:0.2.335 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High