registry / Credential exfiltration / @reason-machines/cli-linux-x64-musl / 0.2.401

@reason-machines/cli-linux-x64-musl@0.2.401

Reason CLI native binary for linux-x64-musl

AI Security Review

scanned 4d ago · by lpm-firewall-ai

Source inspection confirms a default-enabled path that forwards saved third-party access tokens to the Reason service. This is concrete credential disclosure, so publication should be blocked.

Static reason

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

Trigger

A Reason worker starts with local logins enabled; the CLI defaults this setting to on when it is otherwise unspecified.

Impact

Saved access tokens are disclosed to the package's service without a recipient-specific affirmative choice; the default setting enables this transfer.

Mechanism

The worker reads local provider credentials, keeps their access tokens, and passes them to the local-subscription request.

Attack narrative

When a worker starts, local logins are enabled by default unless the setting is overridden. The CLI reads saved third-party authentication material, extracts access tokens, and sends them through the local-subscription route to the Reason API. The feature supports local Sessions, but that functionality does not provide recipient-specific consent to export saved provider tokens.

AI rationale

Source inspection confirms a default-enabled path that forwards saved third-party access tokens to the Reason service. This is concrete credential disclosure, so publication should be blocked.

Evidence

bin/vm-hands/vm-hands-entry-lite-8bqyx62p.jsbin/vm-hands/vm-hands-entry-lite-09yt840b.jsbin/vm-hands/vm-hands-entry-lite-80jthkkx.jsbin/vm-hands/vm-hands-entry-lite-923jmcs3.js

Network endpoints1

api.reasonmachines.ai

Decision evidence

public snapshot

AI called this Malicious at 94.0% confidence as Malware with low false-positive risk.

Evidence for block

The CLI reads saved Claude credentials and other local provider authentication material.
It keeps provider access tokens for forwarding while dropping refresh tokens.
When local logins are enabled, worker startup sends those tokens through the local-subscription client.
The request uses the local-subscription route, which is configured for the Reason API.

Evidence against

The token forwarding supports a stated Sessions feature and targets the Reason service, rather than an unrelated external collector.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Manifest

NoLicense

Source & flagged code

24 flagged

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

60mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=UH((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(N===1)return[];throw Error(`ripgrep failed with exit code ${N}: ${H}`)}import{join as V0,dirname as xH}from"path";import{fileURLToPath as vH}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(WH(W))}function D7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function GH($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=UH((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(N===1)return[];throw Error(`ripgrep failed with exit code ${N}: ${H}`)}import{join as V0,dirname as xH}from"path";import{fileURLToPath as vH}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(B)??B;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(WH(W))}function D7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function GH($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=UH((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/vm-hands-entry-lite-8bqyx62p.jsView file

Lines 82-122javascript

82`);let x0=R9($,w,{displayVideo:w["display.stream.v1"]===!0&&await H(),handsBrowser:w["hands.connect"]===!0&&M,userChrome:j0&&"host"in j0?j0.host:null,...L===void 0?{}:{githubSignedIn:L},persistentTerminals:w["pty.start"]===!0&&y2(),probing:a,ownComputer:X.ownComputer===!0});if(!W&&x0.worker.readiness?.["browser.pr-proof.v1"]===!0){let Q0=await YJ();if(W||_.signal.aborted)return x0;process.stderr.write("error"in Q0?`Reason worker: PR video proof unavailable (${Q0.error})

83`:`Reason worker: PR video proof ready (ffmpeg ${Q0.encoder.ffmpeg.path})

84`),W=VJ({assertCurrent:async()=>{if(!b())throw Error("proof_authority_lost")},...!("error"in Q0)?{recording:Q0}:{}})}return x0},F=await O(q,B?Q9.filter((w)=>q[w]!==!0):[]),z=z9($,J,F,W?.capability);X.onStartup?.("inventory_completed");let j=!1,D=0,R=0,I="starting",P=null,C=!1,f=!1,S=null,h,p=()=>!V.drained&&Date.parse(Y)>Date.now()&&z.supported_operations.some((w)=>F.worker.readiness?.[w]===!0),b=()=>!j&&p(),x=null,E=()=>D+(x?.claims()??0),A=null,k=new Set,y=(w)=>{let a=w.capabilities.root_paths;if(Object.assign(w.capabilities,z9(w.config,w.state,F,W?.capability)),a)w.capabilities.root_paths=a ...

bin/vm-hands/index-58750fwy.jsView file

1// @bun L2: import{Aa as iJ0}from"./vm-hands-entry-lite-z9y1sb0f.js";import{Nk as NV0,Ok as rn,Pk as EJ,Rk as an,Sk as X0}from"./vm-hands-entry-lite-4yw8vx5h.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-58750fwy.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-58750fwy.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-executor-bvhh1xjv.jsView file

1Cross-file remote execution chain: bin/vm-hands/vm-hands-executor-bvhh1xjv.js spawns bin/vm-hands/vm-hands-entry-lite-18kfytsa.js; helper contains network access plus dynamic code execution. L1: // @bun L2: import{s as wq}from"./vm-hands-entry-lite-11ge54k1.js";import{Mb as Nq,qc as Aq,wb as jq,wc as Rq}from"./vm-hands-entry-lite-qmtk8vgg.js";import"./vm-hands-entry-lite-fkkmhfjc.js";... L3: `)){let q=W.split(" ");if(q.length<10||!/^\d+:\d+$/.test(q[2]))continue;$.push({device:q[2],root:Yq(q[3]),mountPoint:Yq(q[4])})}return $}function kq(X,$,W){let q=X.replace(/\/+$/,"... L4: `).filter(Boolean);Y=Z.length;let K=z.map((U)=>{try{return Number(JSON.parse(U).elapsed_ms)||0}catch{return 0}});if(K.length)q("vm_hands.srt_server_starts",{count:K.length,elapsed_... L5: `).filter(Boolean).slice(0,10

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-bvhh1xjv.jsView on unpkg · L1

bin/runtime/srt/vendor/seccomp/x64/apply-seccompView file

•path = [redacted]-seccomp kind = native_binary sizeBytes = 755720 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/runtime/srt/vendor/seccomp/x64/apply-seccompView on unpkg

bin/vm-hands/vm-hands-entry-lite-xz9w76j7.jsView file

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-x64-musl@0.2.397 matchedPath = bin/vm-hands/vm-hands-entry-lite-e4kdpq0t.js matchedIdentity = npm:[redacted]:0.2.397 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High