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Microsoft MsMpEng - Use-After-Free via Saved Callers Exploit
| Reporter | Title | Published | Views | Family All 23 |
|---|---|---|---|---|
 | CVE-2017-8538 | 26 May 201700:00 | – | attackerkb |
| CVE-2017-8541 | 26 May 201700:00 | – | attackerkb |
| CVE-2017-8540 | 26 May 201700:00 | – | attackerkb |
 | CVE-2017-8541 | 30 May 201700:00 | – | circl |
 | Microsoft Malware Protection Engine Remote Code Execution Vulnerability (CNVD-2017-09504) | 31 May 201700:00 | – | cnvd |
 | Microsoft Malware Protection Engine Remote Code Execution (CVE-2017-8541) | 29 May 201700:00 | – | checkpoint_advisories |
 | CVE-2017-8541 | 26 May 201720:00 | – | cve |
 | CVE-2017-8541 | 26 May 201720:00 | – | cvelist |
 | KLA11029 Multiple vulnerabilities in the Microsoft Malware Protection Engine | 9 May 201700:00 | – | kaspersky |
| KLA11839 Multiple vulnerabilities in Microsoft Exchange Server | 25 May 201700:00 | – | kaspersky |
10
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1259
In JsRuntimeState::setCaller, it saves the current caller in the JsRuntimeState object(rcx+158h in 64-bit). But the garbage collector doesn't mark this saved value. So it results in a UAF.
Unlike in our test environment(Linux), it doesn't make reliable crashes on Windows. So I used another bug(#1258) to confirm the bug. If the UAF bug doesn't exist, the "crash" function will not be called(See poc.js).
The password of the zip file is "calleruaf"
Proof of Concept:
https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/42092.zip
# 0day.today [2018-01-05] #Data
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31 May 2017 00:00Current
7.5High risk
Vulners AI Score7.5
EPSS0.64196