Monte Cristo
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    Treasure Cave


    Is there anything valuable in this cave?

    MOSEC 2020

    My first attended conference!

    Posted on July 25, 2020

    During 23/7/2020 9:00 AM to 18:00 PM, I signed up and took apart in MOSEC 2020 conference. It was really satisfying for me about all the things: the talks, the BaiJiu Con, the lunch, etc. [Read More]
    Tags: Life

    A Simple Question Between User and Kernel

    MMAP not easy info leak

    Posted on June 21, 2020

    Hi there, May I ask you a simple question? :P. “Whether or not can an user fetch memory page that is released by the kernel?”. Do you have your quick answer in mind? Well, the answer is “Yes”. We will talk about that in this post (3.18 kernel for this... [Read More]
    Tags: Kernel

    Thorough Understanding with Anonymous MMAP

    Basic of ret2dir

    Posted on June 18, 2020

    When I spend time exploiting the Linux kernel, I indeed get some tiny pieces of the entire picture about how the Linux memory management work. Of course, it seems enough for some naive heap shaping and spraying, but also confuse me when things get deeper. [Read More]
    Tags: Kernel

    CVE-2016-0728

    Do you have patience to exploit one long overflow?

    Posted on June 7, 2020

    Before Anything [Read More]
    Tags: CVE Kernel

    CVE-2016-5195

    Dirty COW = Dirty Copy On Write

    Posted on June 6, 2020

    This time we can take a look at a very very very famous bug: Dirty-COW vulnerability. [Read More]
    Tags: CVE Kernel
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