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Re: [FD] WinRAR SFX v5.21 - Remote Code Execution Vulnerability

"Gynvael Coldwind" <gynvael@xxxxxxxxxxx> wrote:

> Correct me if I'm wrong, but the vulnerability can be summarized as: if you
> run an untrusted .exe you might execute malicious code?

Amen!

> I hardly see this as giving anything new to the attacker who can just
> create a malicious exe file, set the winrar sfx icon and send it to the
> victim.

That's why giving unsuspecting users *.EXE to install a software package
or to unpack an archive and thus training them to run almost anything
they get their hands on is a BLOODY STUPID idea in the first place.

ALWAYS use the platforms native package or archive formats to distribute
your software or files!

> Keep in mind that not every unexpected behavior or software bug is a
> security vulnerability.
> 
> (and no, potential AV bypass doesn't make it a vulnerability either)

Right again.

stay tuned
Stefan

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