Re: Solaris libc exploit

From: Scott Weikart (scottat_private)
Date: Thu Jul 15 1999 - 14:37:00 PDT

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    >> > 4118295 LC_* can be used to obtain root access from setuid programs
    >> This is already fixed in Solaris 7 and the following patches for
    >> Solaris 2.6:
    >>   RELEASE     ARCH  PATCH
    >>   5.6         i386  105211-06
    >>   5.6         sparc 105210-06
    >
    >OK, did I miss the later messages on this topic?  I've been waiting for a
    >formal announcement from Sun, or a real patch, or someone to say that this
    >patch definitely fixes the problem, or SOMETHING...
    >
    >I don't know what version of patching Peter was talking about, but right
    >now, I can consistently gain root on my Solaris 7 sparc box, with MU2
    >applied, using the LC_MESSAGES buffer overflow exploit.  And I can
    >consistently do Bad Things to sh on a Solaris 2.6 box with 105210-19
    >(its a production machine, I can't actively root it).
    
    Both 105210-22 and 105211-22 were released June 25, and list as the bug fixed:
    
    	4240566 security: LC_MESSAGES buffer overflow
    
    -scott
    



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