Gentoo Archives: gentoo-hardened

From: Matt Poletiek <chill550@×××××.com>
To: gentoo-hardened@l.g.o
Subject: Re: [gentoo-hardened] problem when using 'su'
Date: Thu, 11 Jan 2007 02:18:29
Message-Id: 1d624cdd0701101816m68e96507v92785eac49ac4868@mail.gmail.com
In Reply to: Re: [gentoo-hardened] problem when using 'su' by pageexec@freemail.hu
1 Switching to the upgraded kernel fixed the issue. My guess so far is
2 that I somehow messed with that library when I was dinking around with
3 my kernel sources, which in turn affected the trust relationship with
4 grsec.
5
6 On 1/10/07, pageexec@××××××××.hu <pageexec@××××××××.hu> wrote:
7 > On 9 Jan 2007 at 5:53, Matt Poletiek wrote:
8 >
9 > > I was upgrading my kernel/patching it with grsec the other day when
10 > > all of a sudden I couldnt su as a normal user anymore. I dont know how
11 > > this would apply considering the new kernel wasnt (and still isnt)
12 > > booted yet.
13 >
14 > given that the logs come from grsec, you must have been already running
15 > such a kernel.
16 >
17 > > grsec: denied untrusted exec of /lib64/ld-2.4.so by /bin/su[su:31770]
18 >
19 > check the access rights on /lib64/ld-2.4.so, they apparently violate
20 > the TPE rules.
21 >
22 > > How do these relate? What is ld-2.4.so? Whats so bad about it?
23 >
24 > it's the 64 bit dynamic linker (part of glibc).
25 >
26 > --
27 > gentoo-hardened@g.o mailing list
28 >
29 >
30
31
32 --
33 Matthew Poletiek
34 www.chill-fu.net
35 --
36 gentoo-hardened@g.o mailing list