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Ubuntu Installer Log Files Exposure of User Credentials
Secunia Advisory: SA19200
Release Date: 2006-03-13
Last Update: 2006-07-20
Popularity: 9,571 views

Critical:
Less critical
Impact: Exposure of sensitive information
Where: Local system
Solution Status: Vendor Patch

OS:Ubuntu Linux 5.10

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CVE reference:CVE-2006-1183


Description:
Karl Øie has reported a security issue in Ubuntu, which can be exploited by malicious, local users to disclose sensitive information.

The problem is caused due to user credentials being written to world-readable installation log files during installation. This can be exploited to disclose the password of the first user account.

Solution:
Apply updated packages.

-- Ubuntu 5.10 (Breezy Badger) --

Source archives:

http://security.ubuntu.com/ubuntu/poo...e-config/base-config_2.67ubuntu20.dsc
Size/MD5: 758 c22bb6e3be4d59aa93e84327f60e89ab
http://security.ubuntu.com/ubuntu/poo...onfig/base-config_2.67ubuntu20.tar.gz
Size/MD5: 577194 99eabbe70227169feaff28ff9062d097
http://security.ubuntu.com/ubuntu/poo...shadow/shadow_4.0.3-37ubuntu8.diff.gz
Size/MD5: 1067297 9db7bb924125a5587380efc08f6787e1
http://security.ubuntu.com/ubuntu/pool/main/s/shadow/shadow_4.0.3-37ubuntu8.dsc
Size/MD5: 876 50cdfae3bfbe1bb1bb4be192d7de19a7
http://security.ubuntu.com/ubuntu/pool/main/s/shadow/shadow_4.0.3.orig.tar.gz
Size/MD5: 1045704 b52dfb2e5e8d9a4a2aae0ca1b266c513

Architecture independent packages:

http://security.ubuntu.com/ubuntu/poo.../apt-setup-udeb_2.67ubuntu20_all.udeb
Size/MD5: 3298 dd42b2901f6f5d7525083c27cbb23407
http://security.ubuntu.com/ubuntu/poo...nfig/base-config_2.67ubuntu20_all.deb
Size/MD5: 291224 e95d7a1d25074ea57d444e817cef1850
http://security.ubuntu.com/ubuntu/poo...-passwd-udeb_4.0.3-37ubuntu8_all.udeb
Size/MD5: 1740 6c7bc8e12968d9876b6e1b27f0476484
http://security.ubuntu.com/ubuntu/poo...ig/tzsetup-udeb_2.67ubuntu20_all.udeb
Size/MD5: 2760 f6ebc84fd2bff0275b1e64d53fdc9955

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/poo...hadow/login_4.0.3-37ubuntu8_amd64.deb
Size/MD5: 180662 de75ded6034f0d7226dfbf0ec66e2be7
http://security.ubuntu.com/ubuntu/poo...adow/passwd_4.0.3-37ubuntu8_amd64.deb
Size/MD5: 589790 f90c48af4e1c55202f22127e72dbf45d

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/poo...shadow/login_4.0.3-37ubuntu8_i386.deb
Size/MD5: 171882 347fa929d15c3689bd68fc487cc116c6
http://security.ubuntu.com/ubuntu/poo...hadow/passwd_4.0.3-37ubuntu8_i386.deb
Size/MD5: 515580 b8c965e4a5c40d1c50e8816aeef689bc

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/poo...dow/login_4.0.3-37ubuntu8_powerpc.deb
Size/MD5: 179886 42ebfcd496b621bdab29e9a6b3f50522
http://security.ubuntu.com/ubuntu/poo...ow/passwd_4.0.3-37ubuntu8_powerpc.deb
Size/MD5: 568426 089edb3f8110ab191bba6d061b199385

Provided and/or discovered by:
Karl Øie

Changelog:
2006-07-20: Added CVE reference.

Original Advisory:
http://www.ubuntu.com/usn/usn-262-1


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