From: Vadym Kononenko <sisyphus@atlantic-link.com.ua>
To: ALT Linux Sisyphus discussion list <sisyphus@lists.altlinux.org>
Subject: Re: [sisyphus] temporary root privileges from local process
Date: Thu, 18 May 2006 17:41:52 +0300
Message-ID: <200605181741.52308.sisyphus@atlantic-link.com.ua> (raw)
In-Reply-To: <20060518121759.GA23118@basalt.office.altlinux.org>
четвер 18 травень 2006 15:17, Dmitry V. Levin написав:
> int main()
>
> > {
> > if (geteuid() != 0) exit(1);
> >
> > setuid(0);
> >
> > return system("/sbin/service bluetooth reload");
> > }
>
> Это instant root, т.е. запускающий эту привилегированную программу
> пользователь может не напрягаясь получить права setuid(0).
Я так понимаю, это из-за запуска шелла с рутовыми правами? Тогда следующий
вариант должен это исправлять:
return execl("/sbin/service" , "service", "bluetooth", "reload", NULL);
?
--
Best regards.
Vadym Kononenko.
Kyiv, Ukraine.
next prev parent reply other threads:[~2006-05-18 14:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-17 17:52 Vadym Kononenko
2006-05-17 22:07 ` Dmitry V. Levin
2006-05-18 11:37 ` Vadym Kononenko
2006-05-18 12:17 ` Dmitry V. Levin
2006-05-18 14:41 ` Vadym Kononenko [this message]
2006-05-18 14:52 ` Dmitry V. Levin
2006-05-19 9:06 ` Vadym Kononenko
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