registry / Credential exfiltration / @reason-machines/cli-linux-x64-musl / 0.2.546

@reason-machines/cli-linux-x64-musl@0.2.546

Reason CLI native binary for linux-x64-musl

AI Security Review

scanned 3h ago · by lpm-firewall-ai

The inspected native executable source shows a default-on transfer of saved third-party access tokens to the Reason service during worker startup. The transfer is a concrete credential disclosure, so this package should be blocked.

Static reason

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

Trigger

A user connects a worker without disabling local login handoff or using an API key.

Impact

The Reason service receives access tokens for third-party accounts, allowing those credentials to be used outside their original local context.

Mechanism

Worker startup reads saved agent credentials and submits provider access tokens through the authenticated local-subscription request.

Attack narrative

When a worker starts, the default connection configuration enables local login handoff. The executable reads saved third-party agent credentials and submits access tokens to the Reason service without requiring a separate affirmative choice for each recipient. The documented opt-out and API-key exception do not guard the default path.

AI rationale

Evidence

.lpm-inspection-6WcA4r/0-b29ead6349bc.txtbin/reason.credentials.jsonauth.json.grok/auth.json

Decision evidence

public snapshot

AI called this Malicious at 90.0% confidence as Malware with low false-positive risk.

Evidence for block

The connection flow starts a worker with a default that enables local login handoff when no override or API key is present.
On worker startup, enabled handoff reads saved third-party agent credentials and sends them through the local-subscription request.
The request uses the local-subscription route and sends the provider token in its body to the Reason API.
The CLI describes this token transfer as enabled by default; it offers an off setting and says the current access token is sent.

Evidence against

The CLI says refresh tokens are not sent and documents an off setting; its connection flow can disable handoff when an API key is used.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscation

Source & flagged code

23 flagged

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

60mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=px((l)=>{a.add(l),l.once("close",()=>a.delete(l)),l.on(... L62: `).filter(Boolean);if(y===1)return[];throw Error(`ripgrep failed with exit code ${y}: ${f}`)}import{join as dr,dirname as Vx}from"path";import{fileURLToPath as Fx}from"url";import*...

High

Child Process

Package source references child process execution.

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

55\r L56: `)}}),t.on("request",async(r,i)=>{r.on("error",(a)=>{C(`Client request error: ${a.message}`,{level:"error"})}),i.on("error",(a)=>{C(`Client response error: ${a.message}`,{level:"er... L57: `)),e.end(fx(s))}function _l(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function dx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=px((l)=>{a.add(l),l.once("close",()=>a.delete(l)),l.on(... L62: `).filter(Boolean);if(y===1)return[];throw Error(`ripgrep failed with exit code ${y}: ${f}`)}import{join as dr,dirname as Vx}from"path";import{fileURLToPath as Fx}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(s||i.destroyed){i.destroy();return}let R=_t(E)??E;if(e.mitmCA&&(e.shouldTerminateTLS?.(R,k)??!0)){i.write(`HTTP/1.1 200 Connecti... L49: \r ... L55: \r L56: `)}}),t.on("request",async(r,i)=>{r.on("error",(a)=>{C(`Client request error: ${a.message}`,{level:"error"})}),i.on("error",(a)=>{C(`Client response error: ${a.message}`,{level:"er... L57: `)),e.end(fx(s))}function _l(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function dx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=px((l)=>{a.add(l),l.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-j6wffzfd.jsView file

1// @bun L2: import{hn}from"./vm-hands-entry-lite-q1yvw4xz.js";import{Fi,he,e}from"./vm-hands-entry-lite-pzj5s203.js";var Ce=he(function(C6,ly){var __dirname="/[redacted]... L3: `)!=-1,y=this._styles,E=y.length;while(E--){var S=s[y[E]];if(g=S.open+g.replace(S.closeRe,S.open)+S.close,b)g=g.replace(a,function(x){return S.close+x+S.open})}return g}n.setTheme=... L4: `).join(` L5: `+_),p.push(w+"m+"+r.exports.humanize(this.diff)+"\x1B[0m")}else p[0]=a()+f+" "+p[0]}function a(){if(t.inspectOpts.hideDate)return"";return new Date().toISOString()+" "}function l(... L6: `)}function c(p){if(p)process.env.DEBUG=p;else delete process.env.DEBUG}function u(){return process.env.DEBUG}function d(p){p.inspectOpts={};let f=Object.keys(t.inspectOpts);for(le... ... L8: `:` L9: `,p=d.whitespace?" = ":"=",f=

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-j6wffzfd.jsView on unpkg · L1

271`).map((i)=>i+` L272: `);if(r)n.pop();else n.push(n.pop().slice(0,-1));return n}function _C(t){let r=[],n,i;for(let s=0;s<t.length;s++){if(n=t[s],n.added)i=1;else if(n.removed)i=-1;else i=0;r.push([i,n.... L273: `)}var Pi=(t)=>(r,n,i,s)=>{let o=i?Object.assign(i,{async:!1}):{async:!1},a=r._zod.run({value:n,issues:[]},o);if(a instanceof Promise)throw new Gr;if(a.issues.length){let l=new(s?....

High

Eval

Package source references dynamic code evaluation.

bin/vm-hands/index-j6wffzfd.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(g)};if(!n[l]){if(p=global[l]||[],d(n,p),n.close=function(g){function b(y,E){return g.call(n,y,function(S){if(!S)w();if(typeof E==="function")E.apply(this,arg... L241: `:""},this._extScope=D,this._scope=new n.Scope({parent:D}),this._nodes=[new v]}toString(){return this._root.render(this.opts)}name(D){return this._scope.name(D)}scopeName(D){return...

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

•path = [redacted]-seccomp kind = native_binary sizeBytes = 759816 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-4r1yn35v.jsView file

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-x64-musl@0.2.545 matchedPath = bin/vm-hands/vm-hands-entry-lite-4r1yn35v.js matchedIdentity = npm:[redacted]:0.2.545 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High