A vulnerability which is known to the designers, implementers, or operators of the system, but has not been corrected.

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Can BREACH be thwarted by simply adding a sort of “salt” into the page being compressed?

Django supplies GZip middleware, but the docs issue a stark warning about BREACH, which I had, hitherto, forgotten about. The first thought I had was that I should be able modify the middleware to ...
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Are there limits (or, what are the limits) to our understanding of AES's resistance to known plaintext attacks?

Let's assume the same message is encrypted many times, each time with a different IV but the same key. Do we reach a point where just knowing what that message is gives us a plausible attack by which ...
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How can I remotely detect versions? [closed]

I want to know how to remotely detect a software version. Once attacker knows the version installed, he can exploit published vulnerabilities. So it will be useful to know it when doing penetration ...
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The correct way to check for vulnerability CVE-2014-7169 (aftershock)

I found two ways of checking for the vulnerability CVE-2014-7169 (aftershock or taviso bug) bashcheck uses: cd /tmp;rm echo 2>/dev/null X='() { function a a>\' bash -c echo 2>/dev/null > ...