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107 Commits

Author SHA1 Message Date
Klas Lindfors
1b2a8fdf30 reimplement drop_privs to implement the pam_modutils interface 
Original patch from maxime.deroucy@gmail.com.
http://code.google.com/p/yubico-pam/issues/detail?id=49
fixes #19
 2013-09-20 10:54:13 +02:00
Klas Lindfors
eb1ba8a52a update copyright years 2013-09-19 08:35:15 +02:00
Eugene Crosser
2aaf0fdc23 Stop leaks of memory and of privileges 
Fix several memory leaks and mishandling of the privilege status
where a function returned failure indication, and previously
allocated memory was not freed (and the referece was lost), or
previously droped privileges where not restored.
 2013-09-18 14:22:41 +02:00
Klas Lindfors
f617829f10 fixup warnings 2013-09-18 14:10:35 +02:00
Klas Lindfors
fb6b0911fd use pbkdf2 to process the exepected response 
this bumps the version on the state file to 2
old files can still be read but new files will use the new format
 2013-09-18 14:10:35 +02:00
Klas Lindfors
eb78d4882b refactor to use chalresp function from ykpers 
so challenge_response() now calls yk_challenge_response() to
do the yubikey internal stuff.
 2013-09-18 14:10:35 +02:00
Christian Hesse
7dc5c6a155 print information only if debug is specified 
The pam module is very informative. I do not want it to print any
information unless debug is specified. An attacker should not get any
information.
 2013-05-13 15:47:59 +02:00
Vincent Brillault
96252b6f2b Verify the otp_length given by the configuration 
Avoid out of bound writing at ligne -920,1 +927,1:
strncpy (otp_id, password + skip_bytes, cfg->token_id_length);
 2012-08-07 19:18:43 +02:00
Klas Lindfors
2ffd54a24c use errstr to communicate with the user 2012-06-14 09:25:38 +02:00
Klas Lindfors
a5f2e9e333 check for same response in pam module, output debug for the user 2012-06-08 13:20:07 +02:00
Klas Lindfors
41c576e0cf replace fopen with open+fdopen to set more restrictive bits 2012-06-08 10:45:59 +02:00
Fredrik Thulin
da246e240c load_chalresp_state: Debug message was always shown. 2012-02-13 14:24:31 +01:00
Fredrik Thulin
82296f4632 do_challenge_response: Clear errno when done. 2012-02-10 15:13:42 +01:00
Fredrik Thulin
2c077fba4e DBG format fix 2012-02-10 14:13:24 +01:00
Fredrik Thulin
fb6281fa3f Fix clang indicated printf format warnings. 2012-02-08 15:53:18 +01:00
Fredrik Thulin
3275b38d59 Fix debug-logging of chalresp_path. Oddity reported by clang. 2012-02-06 11:37:42 +01:00
Fredrik Thulin
dc9146ffcb snprintf returns an int, not a size_t. reported by clang. 2012-02-06 11:31:23 +01:00
Fredrik Thulin
bfbcda54ad Merge branch 'master' of https://github.com/remim/yubico-pam 2012-02-02 13:16:05 +01:00
Remi Mollon
3e1f5f6925 renaming yubi_prefix to yubi_Attr_prefix and changing debug 2012-02-01 09:29:05 +01:00
Clemens Lang
d2c14efdd4 Add missing headers 
fcntl.h in pam_yubico.c is needed on OS X with clang for the build to
succeed, while unistd.h in util.c is required so clang doesn't complain
about implicit declarations of ftruncate and fsync.
 2012-01-28 00:30:34 +01:00
Fredrik Thulin
73369beba9 Avoid double fclose() in some error cases. 
Problem reported (and patched) by Lingzhu Xiang <xianglingzhu@gmail.com>
in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=657524
 2012-01-27 12:33:53 +01:00
Remi Mollon
fd465d1261 add comment 2012-01-24 17:42:49 +01:00
Simon Josefsson
3828953374 Bump version. Use silent rules. Bump copyright years. 2012-01-23 20:25:06 +01:00
Remi Mollon
b42307d169 adding yubi_prefix parameter, when looking for token_id in ldap 2012-01-18 17:04:58 +01:00
Fredrik Thulin
263012f725 authorize_user_token: Don't drop privs for system-wide file. 2011-12-13 16:56:04 +01:00
Fredrik Thulin
43134038a5 do_challenge_response: Remove 2 unused variables. 2011-12-06 13:45:58 +01:00
Fredrik Thulin
b27599957c Fix implicit yubikey_* declarations. 2011-12-06 13:31:25 +01:00
Fredrik Thulin
fa8a9ff074 Fix pointer signedness warnings. 2011-12-06 11:56:52 +01:00
Fredrik Thulin
f24f333867 Drop privileges before writing new C-R file. 2011-11-23 13:56:01 +01:00
Fredrik Thulin
94885d2d48 Verify that challenge-response file is a normal file. 2011-11-23 13:55:44 +01:00
Fredrik Thulin
d4acd495f0 improve debug messages 2011-11-23 13:46:26 +01:00
Fredrik Thulin
fcde64a93e Use pam_modutil_drop_priv if it is available. 
Utility functions for what was done in drop_priv.c appeared
in PAM 1.1.3. Use them when available.
 2011-11-23 13:45:41 +01:00
Fredrik Thulin
b92902fd8f Restore challenge-response functionality. 
HAVE_LIBYKPERS_1 did not seem to ever get defined, so use HAVE_CR instead.
 2011-11-23 13:26:02 +01:00
Ricky Zhou
a9892dbb44 Drop privileges before opening user files. 
This change also ensures that user tokens are regular files.  We may
want to add a similar check for user challenge files.
 2011-11-23 10:16:00 +01:00
Fredrik Thulin
f92ee12aa9 Remove unused variable and extra undef. 2011-11-22 11:17:29 +01:00
Fredrik Thulin
47d883b600 pam_sm_authenticate: check strdup return value 2011-11-22 11:08:53 +01:00
Fredrik Thulin
57cf6ed5d6 authorize_user_token_ldap: check malloc return value 2011-11-22 11:08:28 +01:00
dr8
6dc10799b6 Bug fix: pam_yubico doesn't check server signature 
Squashed commit of the following:

commit 9e7746bc53
Author: dr8 <github@dominicrutherford.co.uk>
Date:   Mon Oct 31 14:27:47 2011 +0000

    Bug fix: pam_yubico doesn't check server signature

commit 2f3d5e721c
Author: dr8 <github@dominicrutherford.co.uk>
Date:   Sat Oct 29 16:59:08 2011 +0100

    Bug fix: pam_yubico does not validate server signature

commit 58a1e6820a
Author: dr8 <github@dominicrutherford.co.uk>
Date:   Fri Oct 28 22:09:49 2011 +0100

    only validate server signature when key is specified

commit d705f429bc
Author: dr8 <github@dominicrutherford.co.uk>
Date:   Tue Oct 25 22:45:22 2011 +0100

    fix failure to validate server signature
 2011-11-08 21:57:28 +01:00
Nanakos Chrysostomos
4712da70ca Fix big security hole: Authentication succeeded when no password 
was given, unless use_first_pass was being used.
This is fatal if pam_yubico is considered 'sufficient' in the PAM
configuration.

Signed-off-by: Nanakos Chrysostomos <nanakos@wired-net.gr>
 2011-08-26 14:32:03 +03:00
Simon Josefsson
e469b630d5 Make dependency on libykpers optional. 
Use --without-cr to force it.  Reported by Jussi Sallinen <jussi@jus.si>.
 2011-06-07 00:35:22 +02:00
Fredrik Thulin
eb438e782c parse_cfg: Use memset to clear cfg struct. 
The code will be easier to maintain if one does not have to remember
explicitly initializing all new members of the config struct.
 2011-04-15 16:30:06 +02:00
Fredrik Thulin
804b537acf Fix some D's that should've been DBG. 2011-04-15 16:28:00 +02:00
Fredrik Thulin
dfebd4173f Make DBG macro unified. 
Refactor authorize_user_token and authorize_user_token_ldap to take
a cfg argument instead of a number of elements from cfg.
 2011-04-15 15:24:50 +02:00
Romain Riviere
1ec6d2df92 Debug: adding a dbg flag and macro so as to disable unwanted debug messages 2011-04-15 14:17:23 +02:00
Tollef Fog Heen
7923496375 Tell the user if something goes wrong after authenticating 
If we successfully authenticate, but something then goes wrong, such
as failure to generate a new challenge, failure to update the
challenge and so on, tell the user.
 2011-03-18 23:05:26 +01:00
Tollef Fog Heen
72d1f4bba9 Move code around slightly to make merging with Fredrik easier 2011-03-18 23:01:46 +01:00
Fredrik Thulin
b20c0ed678 Make get_user_challenge_file() also include YubiKey serial number, 
and move it to util.c.
 2011-03-18 22:57:22 +01:00
Fredrik Thulin
69ec1bf8a0 Further cleanups to challenge response code, and move more code to util.c. 2011-03-18 22:56:41 +01:00
Fredrik Thulin
cb16817047 Revert "Wait with declaring PAM_SUCCESS on challenge-response until new" 
Tollef has argued that the login should not fail if, for example, the
disk is full. I'd rather fail on the cautious side and make sure we
don't end up always sending the same challenge to the YubiKey, but I'll
leave it up to Tollef to decide for now.

This reverts commit 14e917ffae.

Conflicts:

	pam_yubico.c
 2011-03-18 22:50:23 +01:00
Fredrik Thulin
721866df0b Move more challenge-response code to util.c. 2011-03-18 21:52:07 +01:00