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Microsoft Windows splWOW64 Privilege Escalation
Posted Dec 23, 2020
Authored by Google Security Research, Maddie Stone

CVE-2020-0986, which was exploited in the wild, was not fixed. The vulnerability still exists, just the exploitation method had to change. A low integrity process can send LPC messages to splwow64.exe (Medium integrity) and gain a write-what-where primitive in splwow64’s memory space. The attacker controls the destination, the contents that are copied, and the number of bytes copied through a memcpy call.

tags | exploit
advisories | CVE-2020-0986, CVE-2021-1648
SHA-256 | 2deda0d9cacd17b84943f485aeea236f1b4dc0389dcdbb9cc34a1cf168d4a259

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