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From 26bf6f9b5118302d41cc702587e5bb9c5ac51350 Mon Sep 17 00:00:00 2001
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From: isaacs <i@izs.me>
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Date: Tue, 8 Dec 2020 14:21:50 -0800
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Subject: [PATCH] do not allow invalid hazardous string as section name
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Signed-off-by: rpm-build <rpm-build>
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---
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node_modules/ini/ini.js | 8 ++++++
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node_modules/ini/test/proto.js | 45 ++++++++++++++++++++++++++++++++++
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2 files changed, 53 insertions(+)
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create mode 100644 node_modules/ini/test/proto.js
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diff --git a/node_modules/ini/ini.js b/node_modules/ini/ini.js
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index 590195d..0401258 100644
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--- a/node_modules/ini/ini.js
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+++ b/node_modules/ini/ini.js
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@@ -80,6 +80,12 @@ function decode (str) {
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if (!match) return
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if (match[1] !== undefined) {
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section = unsafe(match[1])
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+ if (section === '__proto__') {
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+ // not allowed
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+ // keep parsing the section, but don't attach it.
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+ p = {}
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+ return
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+ }
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p = out[section] = out[section] || {}
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return
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}
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@@ -94,6 +100,7 @@ function decode (str) {
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// Convert keys with '[]' suffix to an array
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if (key.length > 2 && key.slice(-2) === '[]') {
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key = key.substring(0, key.length - 2)
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+ if (key === '__proto__') return
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if (!p[key]) {
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p[key] = []
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} else if (!Array.isArray(p[key])) {
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@@ -125,6 +132,7 @@ function decode (str) {
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var l = parts.pop()
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var nl = l.replace(/\\\./g, '.')
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parts.forEach(function (part, _, __) {
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+ if (part === '__proto__') return
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if (!p[part] || typeof p[part] !== 'object') p[part] = {}
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p = p[part]
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})
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diff --git a/node_modules/ini/test/proto.js b/node_modules/ini/test/proto.js
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new file mode 100644
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index 0000000..ab35533
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--- /dev/null
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+++ b/node_modules/ini/test/proto.js
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@@ -0,0 +1,45 @@
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+var ini = require('../')
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+var t = require('tap')
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+
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+var data = `
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+__proto__ = quux
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+foo = baz
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+[__proto__]
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+foo = bar
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+[other]
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+foo = asdf
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+[kid.__proto__.foo]
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+foo = kid
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+[arrproto]
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+hello = snyk
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+__proto__[] = you did a good job
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+__proto__[] = so you deserve arrays
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+thanks = true
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+`
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+var res = ini.parse(data)
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+t.deepEqual(res, {
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+ foo: 'baz',
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+ other: {
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+ foo: 'asdf',
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+ },
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+ kid: {
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+ foo: {
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+ foo: 'kid',
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+ },
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+ },
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+ arrproto: {
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+ hello: 'snyk',
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+ thanks: true,
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+ },
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+})
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+t.equal(res.__proto__, Object.prototype)
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+t.equal(res.kid.__proto__, Object.prototype)
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+t.equal(res.kid.foo.__proto__, Object.prototype)
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+t.equal(res.arrproto.__proto__, Object.prototype)
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+t.equal(Object.prototype.foo, undefined)
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+t.equal(Object.prototype[0], undefined)
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+t.equal(Object.prototype['0'], undefined)
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+t.equal(Object.prototype[1], undefined)
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+t.equal(Object.prototype['1'], undefined)
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+t.equal(Array.prototype[0], undefined)
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+t.equal(Array.prototype[1], undefined)
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--
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2.31.1
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