From 26bf6f9b5118302d41cc702587e5bb9c5ac51350 Mon Sep 17 00:00:00 2001
From: isaacs <i@izs.me>
Date: Tue, 8 Dec 2020 14:21:50 -0800
Subject: [PATCH] do not allow invalid hazardous string as section name

Signed-off-by: rpm-build <rpm-build>
---
 node_modules/ini/ini.js        |  8 ++++++
 node_modules/ini/test/proto.js | 45 ++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 node_modules/ini/test/proto.js

diff --git a/node_modules/ini/ini.js b/node_modules/ini/ini.js
index 590195d..0401258 100644
--- a/node_modules/ini/ini.js
+++ b/node_modules/ini/ini.js
@@ -80,6 +80,12 @@ function decode (str) {
     if (!match) return
     if (match[1] !== undefined) {
       section = unsafe(match[1])
+      if (section === '__proto__') {
+        // not allowed
+        // keep parsing the section, but don't attach it.
+        p = {}
+        return
+      }
       p = out[section] = out[section] || {}
       return
     }
@@ -94,6 +100,7 @@ function decode (str) {
     // Convert keys with '[]' suffix to an array
     if (key.length > 2 && key.slice(-2) === '[]') {
       key = key.substring(0, key.length - 2)
+      if (key === '__proto__') return
       if (!p[key]) {
         p[key] = []
       } else if (!Array.isArray(p[key])) {
@@ -125,6 +132,7 @@ function decode (str) {
     var l = parts.pop()
     var nl = l.replace(/\\\./g, '.')
     parts.forEach(function (part, _, __) {
+      if (part === '__proto__') return
       if (!p[part] || typeof p[part] !== 'object') p[part] = {}
       p = p[part]
     })
diff --git a/node_modules/ini/test/proto.js b/node_modules/ini/test/proto.js
new file mode 100644
index 0000000..ab35533
--- /dev/null
+++ b/node_modules/ini/test/proto.js
@@ -0,0 +1,45 @@
+var ini = require('../')
+var t = require('tap')
+
+var data = `
+__proto__ = quux
+foo = baz
+[__proto__]
+foo = bar
+[other]
+foo = asdf
+[kid.__proto__.foo]
+foo = kid
+[arrproto]
+hello = snyk
+__proto__[] = you did a good job
+__proto__[] = so you deserve arrays
+thanks = true
+`
+var res = ini.parse(data)
+t.deepEqual(res, {
+  foo: 'baz',
+  other: {
+    foo: 'asdf',
+  },
+  kid: {
+    foo: {
+      foo: 'kid',
+    },
+  },
+  arrproto: {
+    hello: 'snyk',
+    thanks: true,
+  },
+})
+t.equal(res.__proto__, Object.prototype)
+t.equal(res.kid.__proto__, Object.prototype)
+t.equal(res.kid.foo.__proto__, Object.prototype)
+t.equal(res.arrproto.__proto__, Object.prototype)
+t.equal(Object.prototype.foo, undefined)
+t.equal(Object.prototype[0], undefined)
+t.equal(Object.prototype['0'], undefined)
+t.equal(Object.prototype[1], undefined)
+t.equal(Object.prototype['1'], undefined)
+t.equal(Array.prototype[0], undefined)
+t.equal(Array.prototype[1], undefined)
-- 
2.31.1