Re: [Fwd: anti-ptrace]
On Sat, 5 Apr 2003, Geoffrey Lee wrote:
Seems this security hole has solved already.
kernel-source-2.4.20 (2.4.20-3woody.3) stable; urgency=low
* Made ptrace fix compile on alpha.
-- Herbert Xu <herbert@debian.org> Wed, 19 Mar 2003 20:41:31 +1100
kernel-source-2.4.20 (2.4.20-3woody.2) stable; urgency=low
* Fixed ptrace security hole.
-- Herbert Xu <herbert@debian.org> Tue, 18 Mar 2003 20:39:44 +1100
> On Sat, Apr 05, 2003 at 04:01:03PM +0800, Rex Tsai wrote:
> >
> > 在 Debian 系統上,舊的核心還有 ptrace 的 bug,以下這個模組可以暫時的防止這
> > 個問題。
> >
>
>
> Please add MODULE_LICENSE or you will taint your kernel ... :-)
>
>
> Also there is a slight problem with using sys_call_table to change
> system calls (but should not be serious)
>
>
> -- G.
>
> --
> char p[] = "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b"
> "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
> "\x80\xe8\xdc\xff\xff\xff/bin/sh";
>
>
>
> --
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>
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