Search libc at user defined place, allow cross plattform analysis

[sreschke80]

Issue tracker

If any of these values are not included, the issue will be closed and not worked

Issue

The libc is searched through the complete filesystem.
This can take a very long time and does not support analysis of cross plattform analysis.
For example one wants to analyse libraries for Android on a Linux PC.
The Linux PC uses glibc on x64 and Android another libc on ARM.

The optional parameter libcfile allows to specify a libc.so file or a search path, where
libc should be found.
If libc is not found, the search is done through the complete filesystem.

Debug Report

***** Checksec debug *****
uid=1000(sreschke) gid=1000(sreschke) groups=1000(sreschke),4(adm),8(mail),20(dialout),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),128(sambashare),132(wireshark),135(vboxusers),137(notes),139(davfs2),141(untersee)
Linux workstation-sre 4.15.0-193-generic #204-Ubuntu SMP Fri Aug 26 19:20:21 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
checksec version: 2.6.0 -- 2022052701
OS=Ubuntu
VER=18.04
-rwxr-xr-x 1 root root 35064 Jan 18 2018 /bin/cat
/bin/cat: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=747e524bc20d33ce25ed4aea108e3025e5c3b78f, stripped
lrwxrwxrwx 1 root root 21 May 21 2019 /usr/bin/awk -> /etc/alternatives/awk
-rwxr-xr-x 1 root root 658072 Feb 11 2018 /usr/bin/gawk
/usr/bin/gawk: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=c8501e8e996c37ed412a87269b6395bc6afbbebb, stripped
-rwxr-xr-x 1 root root 22600 Aug 9 2019 /sbin/sysctl
/sbin/sysctl: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=a00798d18069ef7db0dac6f99e562eb52da1da33, stripped
-rwxr-xr-x 1 root root 109000 Jan 30 2018 /bin/sed
/bin/sed: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=10744c40e02644c1d07a1298982dd6dc198deadc, stripped
-rwxr-xr-x 1 root root 35032 Jan 18 2018 /bin/uname
/bin/uname: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=2b4b6989bb8cf1061951e98ab1cc8e6130f6aa5c, stripped
lrwxrwxrwx 1 root root 24 Oct 20 2021 /usr/bin/objdump -> x86_64-linux-gnu-objdump
-rwxr-xr-x 1 root root 414256 Oct 20 2021 /usr/bin/x86_64-linux-gnu-objdump
/usr/bin/x86_64-linux-gnu-objdump: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=3cf1d03e9374912c2529dffa9430a6d3f4051c6c, stripped
-rwxr-xr-x 1 root root 43192 Jan 18 2018 /bin/mktemp
/bin/mktemp: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=8258387eab419d6c48de0e1f6d6518eac46dac36, stripped
-rwxr-xr-x 1 root root 723944 Jul 4 13:25 /usr/bin/openssl
/usr/bin/openssl: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=7c7a35f470131d5bfe29c2e48079fb7fa4771b4e, stripped
-rwxr-xr-x 1 root root 219456 Sep 18 2019 /bin/grep
/bin/grep: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=4806f6fd2346800fffcaeedb877623aa54cf94e8, stripped
-rwxr-xr-x 1 root root 80088 Jan 18 2018 /usr/bin/stat
/usr/bin/stat: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=a8ada86d60f0d5361c99eb114227dea0b8b133b4, stripped
-rwxr-xr-x 1 root root 22792 May 12 2020 /usr/bin/file
/usr/bin/file: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=2b26928f841d92afa31613c2c916a3abc96bbed8, stripped
-rwxr-xr-x 1 root root 238080 Nov 5 2017 /usr/bin/find
/usr/bin/find: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=b920f53e0c67a31d8ef07b84b1344f87a0e82d71, stripped
-rwxr-xr-x 1 root root 43224 Jan 18 2018 /usr/bin/head
/usr/bin/head: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=f53353500249659d3b82d732445de676de95b24a, stripped
-rwxr-xr-x 1 root root 133432 Aug 9 2019 /bin/ps
/bin/ps: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=58b99c8d60ac34519f0295af42103dda69f180f6, stripped
-rwxr-xr-x 1 root root 43192 Jan 18 2018 /bin/readlink
/bin/readlink: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=427b7c5d8766a0185381c7ad75855d4758030fb2, stripped
-rwxr-xr-x 1 root root 35000 Jan 18 2018 /usr/bin/basename
/usr/bin/basename: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=cb1bb6b3247280ca512b0443ab48fdcf87e32aef, stripped
-rwxr-xr-x 1 root root 43224 Jan 18 2018 /usr/bin/id
/usr/bin/id: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=cba786491810c0767b2a66ab876bcb7783955cad, stripped
lrwxrwxrwx 1 root root 10 May 21 2019 /usr/bin/which -> /bin/which
-rwxr-xr-x 1 root root 946 Dec 30 2017 /bin/which
/bin/which: POSIX shell script, ASCII text executable
-rwxr-xr-x 1 root root 499264 Apr 8 2019 /usr/bin/wget
/usr/bin/wget: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=970fffbfe51d7e5331e8226842ebf75d5c926dda, stripped
-rwxr-xr-x 1 root root 223304 Oct 18 18:45 /usr/bin/curl
/usr/bin/curl: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=72f23eea6078a436cfa5fa66a4dc6a3af3055f10, stripped
lrwxrwxrwx 1 root root 24 Oct 20 2021 /usr/bin/readelf -> x86_64-linux-gnu-readelf
-rwxr-xr-x 1 root root 596440 Oct 20 2021 /usr/bin/x86_64-linux-gnu-readelf
/usr/bin/x86_64-linux-gnu-readelf: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=95c700acb6ff82dd5498bb2c0c7b32c73e5fb89a, stripped
*** can not find command eu-readelf

Command run to produce the error

./checksec --file=../local/arm64-v8a/libwebsrv.so
RELRO STACK CANARY NX PIE RPATH RUNPATH Symbols FORTIFY Fortified Fortifiable FILE
Full RELRO Canary found NX enabled DSO No RPATH No RUNPATH 1479 Symbols find: '/.local': Permission denied

OS version and Kernel version

Ubuntu LTS 18.04
$ uname -a
Linux workstation-sre 4.15.0-193-generic #204-Ubuntu SMP Fri Aug 26 19:20:21 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Debug output

./checksec --debug --file=/home/sreschke/gutool/project/obj/local/arm64-v8a/libwebsrv.so
RELRO STACK CANARY NX PIE RPATH RUNPATH Symbols FORTIFY Fortified Fortifiable FILE
Full RELRO Canary found NX enabled DSO No RPATH No RUNPATH 1479 Symbols find: '/.local': Permission denied

And now an endless list of files with Permission denied follows, because on my user does not have all rights.

[sreschke80]

Replaced by
#206

[sreschke80]

PR created, can be closed.