| Commit message (Collapse) | Author | Age |
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* modules/pam_wheel/pam_wheel.8.xml: Correct the documentation of the
root_only option.
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modules/pam_unix/pam_unix.8.xml: Document that the MD5 password hash is used
to store the old passwords when remember option is set.
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We have to drop support for not_set_pass option which is not much useful
anyway. Instead we get proper support for authtok_type option.
* modules/pam_unix/pam_unix.8.xml: Removed not_set_pass option, added authtok_ty
pe
option.
* modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Replace _unix_read_pas
sword()
call with equivalent pam_get_authtok() call.
* modules/pam_unix/pam_unix_passwd.c (pam_sm_chauthtok): Likewise and also drop
support for not_set_pass.
* modules/pam_unix/support.c (_unix_read_password): Remove.
* modules/pam_unix/support.h: Remove UNIX_NOT_SET_PASS add UNIX_AUTHTOK_TYPE.
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* modules/pam_unix/pam_unix_acct.c (pam_sm_acct_mgmt): Make password
expiration messages more user-friendly.
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then we inform about it and not use it. [ticket#46]
* modules/pam_group/pam_group.c: ditto
* modules/pam_succeed_if/pam_succeed_if.c: ditto
* modules/pam_time/pam_time.c: ditto
Signed-off-by: Khem Raj <raj.khem at gmail.com>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
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Remove blank lines at EOF introduced by commit
a684595c0bbd88df71285f43fb27630e3829121e,
making the project free of warnings reported by
git diff --check 4b825dc642cb6eb9a060e54bf8d69288fbee4904 HEAD
* libpam/pam_dynamic.c: Remove blank line at EOF.
* modules/pam_echo/pam_echo.c: Likewise.
* modules/pam_keyinit/pam_keyinit.c: Likewise.
* modules/pam_mkhomedir/pam_mkhomedir.c: Likewise.
* modules/pam_pwhistory/pam_pwhistory.c: Likewise.
* modules/pam_rhosts/pam_rhosts.c: Likewise.
* modules/pam_sepermit/pam_sepermit.c: Likewise.
* modules/pam_stress/pam_stress.c: Likewise.
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The old SunRPC functions don't work with IPv6.
* configure.ac: Set and restore CPPFLAGS
* modules/pam_unix/pam_unix_passwd.c: Replace getrpcport with
rpcb_getaddr if available.
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Linux-PAM. It was never official supported and was broken since years.
* configure.ac: Remove --enable-static-modules option.
* doc/man/pam_sm_acct_mgmt.3.xml: Remove PAM_EXTERN.
* doc/man/pam_sm_authenticate.3.xml: Likewise.
* doc/man/pam_sm_chauthtok.3.xml: Likewise.
* doc/man/pam_sm_close_session.3.xml: Likewise.
* doc/man/pam_sm_open_session.3.xml: Likewise.
* doc/man/pam_sm_setcred.3.xml: Likewise.
* libpam/Makefile.am: Remove STATIC_MODULES cases.
* libpam/include/security/pam_modules.h: Remove PAM_STATIC parts.
* libpam/pam_dynamic.c: Likewise.
* libpam/pam_handlers.c: Likewise.
* libpam/pam_private.h: Likewise.
* libpam/pam_static.c: Remove file.
* libpam/pam_static_modules.h: Remove header file.
* modules/pam_access/pam_access.c: Remove PAM_EXTERN and PAM_STATIC parts.
* modules/pam_cracklib/pam_cracklib.c: Likewise.
* modules/pam_debug/pam_debug.c: Likewise.
* modules/pam_deny/pam_deny.c: Likewise.
* modules/pam_echo/pam_echo.c: Likewise.
* modules/pam_env/pam_env.c: Likewise.
* modules/pam_exec/pam_exec.c: Likewise.
* modules/pam_faildelay/pam_faildelay.c: Likewise.
* modules/pam_filter/pam_filter.c: Likewise.
* modules/pam_ftp/pam_ftp.c: Likewise.
* modules/pam_group/pam_group.c: Likewise.
* modules/pam_issue/pam_issue.c: Likewise.
* modules/pam_keyinit/pam_keyinit.c: Likewise.
* modules/pam_lastlog/pam_lastlog.c: Likewise.
* modules/pam_limits/pam_limits.c: Likewise.
* modules/pam_listfile/pam_listfile.c: Likewise.
* modules/pam_localuser/pam_localuser.c: Likewise.
* modules/pam_loginuid/pam_loginuid.c: Likewise.
* modules/pam_mail/pam_mail.c: Likewise.
* modules/pam_mkhomedir/pam_mkhomedir.c: Likewise.
* modules/pam_motd/pam_motd.c: Likewise.
* modules/pam_namespace/pam_namespace.c: Likewise.
* modules/pam_nologin/pam_nologin.c: Likewise.
* modules/pam_permit/pam_permit.c: Likewise.
* modules/pam_pwhistory/pam_pwhistory.c: Likewise.
* modules/pam_rhosts/pam_rhosts.c: Likewise.
* modules/pam_rootok/pam_rootok.c: Likewise.
* modules/pam_securetty/pam_securetty.c: Likewise.
* modules/pam_selinux/pam_selinux.c: Likewise.
* modules/pam_sepermit/pam_sepermit.c: Likewise.
* modules/pam_shells/pam_shells.c: Likewise.
* modules/pam_stress/pam_stress.c: Likewise.
* modules/pam_succeed_if/pam_succeed_if.c: Likewise.
* modules/pam_tally/pam_tally.c: Likewise.
* modules/pam_tally2/pam_tally2.c: Likewise.
* modules/pam_time/pam_time.c: Likewise.
* modules/pam_timestamp/pam_timestamp.c: Likewise.
* modules/pam_tty_audit/pam_tty_audit.c: Likewise.
* modules/pam_umask/pam_umask.c: Likewise.
* modules/pam_userdb/pam_userdb.c: Likewise.
* modules/pam_warn/pam_warn.c: Likewise.
* modules/pam_wheel/pam_wheel.c: Likewise.
* modules/pam_xauth/pam_xauth.c: Likewise.
* modules/pam_unix/Makefile.am: Remove STATIC_MODULES part.
* modules/pam_unix/pam_unix_acct.c: Remove PAM_STATIC part.
* modules/pam_unix/pam_unix_auth.c: Likewise.
* modules/pam_unix/pam_unix_passwd.c: Likewise.
* modules/pam_unix/pam_unix_sess.c: Likewise.
* modules/pam_unix/pam_unix_static.c: Removed.
* modules/pam_unix/pam_unix_static.h: Removed.
* po/POTFILES.in: Remove removed files.
* tests/tst-dlopen.c: Remove PAM_STATIC part.
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new libnsl.
* configure.ac: fix setting of CFLAGS/LIBS, enhance libnsl check
* modules/pam_unix/Makefile.am: replace NIS_* with TIRPC_* and NSL_*
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and such not needed.
* modules/pam_access/Makefile.am: Remove NIS_CFLAGS and NIS_LIBS
* modules/pam_access/pam_access.c: Remove yp_get_default_domain case,
it will never be used.
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* modules/pam_lastlog/pam_lastlog.c (last_login_read): Check for localtime_r
returning NULL.
* modules/pam_tally2/pam_tally2.c (print_one): Check for localtime returning
NULL.
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Fixes a minor bug in behavior when is_selinux_enabled()
returned negative value.
* modules/pam_unix/passverify.c: Add parentheses to SELINUX_ENABLED macro.
(unix_update_shadow): Safe cast forwho to non-const char *.
* modules/pam_unix/support.c: Remove unused SELINUX_ENABLED macro.
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* modules/pam_env/Makefile.am: Add the environment.5 soelim stub.
* modules/pam_env/pam_env.8.xml: Add environ(7) reference.
* modules/pam_env/pam_env.conf.5.xml: Add environment alias name.
Add a paragraph about /etc/environment. Add environ(7) reference.
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* modules/pam_unix/pam_unix.8.xml: Document the no_pass_expiry option.
* modules/pam_unix/pam_unix_acct.c (pam_sm_acct_mgmt): If no_pass_expiry
is on and return value data is not set to PAM_SUCCESS then ignore
PAM_NEW_AUTHTOK_REQD and PAM_AUTHTOK_EXPIRED returns.
* modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Always set the
return value data.
(pam_sm_setcred): Test for likeauth option and use the return value data
only if set.
* modules/pam_unix/support.h: Add the no_pass_expiry option.
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* modules/pam_unix/passverify.c (create_password_hash): Change the
salt length for new hashes to 16 characters.
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* modules/pam_tally2/pam_tally2.c (tally_parse_args): Add debug option.
(tally_check): Always log the tally count with debug option.
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* modules/pam_loginuid/pam_loginuid.c (_pam_loginuid): Add syslog message
if required auditd is not detected.
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* modules/pam_rootok/pam_rootok.c (selinux_check_root): Use rootok instead of
passwd permission.
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* modules/pam_timestamp/hmacsha1.c(hmac_key_create):
close 'keyfd' when failed to own it.
Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com>
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Security fix: CVE-2015-3238
If the process executing pam_sm_authenticate or pam_sm_chauthtok method
of pam_unix is not privileged enough to check the password, e.g.
if selinux is enabled, the _unix_run_helper_binary function is called.
When a long enough password is supplied (16 pages or more, i.e. 65536+
bytes on a system with 4K pages), this helper function hangs
indefinitely, blocked in the write(2) call while writing to a blocking
pipe that has a limited capacity.
With this fix, the verifiable password length will be limited to
PAM_MAX_RESP_SIZE bytes (i.e. 512 bytes) for pam_exec and pam_unix.
* NEWS: Update
* configure.ac: Bump version
* modules/pam_exec/pam_exec.8.xml: document limitation of password length
* modules/pam_exec/pam_exec.c: limit password length to PAM_MAX_RESP_SIZE
* modules/pam_unix/pam_unix.8.xml: document limitation of password length
* modules/pam_unix/pam_unix_passwd.c: limit password length
* modules/pam_unix/passverify.c: Likewise
* modules/pam_unix/passverify.h: Likewise
* modules/pam_unix/support.c: Likewise
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Patch by Louis Sautier
* doc/adg/Linux-PAM_ADG.xml: Fix gramatical errors.
* doc/man/pam.3.xml: Likewise.
* doc/man/pam_acct_mgmt.3.xml: Likewise.
* doc/man/pam_chauthtok.3.xml: Likewise.
* doc/man/pam_sm_chauthtok.3.xml: Likewise.
* modules/pam_limits/limits.conf.5.xml: Likewise.
* modules/pam_mail/pam_mail.8.xml: Likewise.
* modules/pam_rhosts/pam_rhosts.c: Likewise.
* modules/pam_shells/pam_shells.8.xml: Likewise.
* modules/pam_tally/pam_tally.8.xml: Likewise.
* modules/pam_tally2/pam_tally2.8.xml: Likewise.
* modules/pam_unix/pam_unix.8.xml: Likewise.
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messages from session.
* modules/pam_unix/pam_unix.8.xml: Document new option.
* modules/pam_unix/support.h: Add quiet option.
* modules/pam_unix/pam_unix_sess.c: Don't print LOG_INFO messages if
'quiet' option is set.
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* modules/pam_unix/passverify.c (create_password_hash): Call crypt_r()
instead of crypt() if available.
* modules/pam_userdb/pam_userdb.c (user_lookup): Call crypt_r()
instead of crypt() if available.
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(Ticket#24 and #29)
* modules/pam_env/pam_env.c: Replace @{HOME} and @{SHELL} with passwd entries
* modules/pam_env/pam_env.conf.5.xml: Document @{HOME} and @{SHELL}
* modules/pam_env/pam_env.8.xml: Enhance documentation
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(Ticket #39)
* modules/pam_access/access.conf.5.xml
* modules/pam_access/pam_access.8.xml
Signed-off-by: Karl O. Pinc <kop at meme.com>
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* modules/pam_timestamp/pam_timestamp.c: Change default timestamp directory.
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* modules/pam_group/group.conf.5.xml: Enhance example by logic group entry.
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* modules/pam_timestamp/pam_timestamp.8.xml: Add timestampdir option.
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modules/pam_succeed_if/pam_succeed_if.c (evaluate): Use PAM_RHOST
and PAM_TTY properly for the rhost and tty values.
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The currently used long with additional conversion to int is
too small for uids and gids.
modules/pam_succeed_if/pam_succeed_if.c (evaluate_num): Replace
strtol() with strtoll() and int with long long in the parameters
of comparison functions.
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modules/pam_mkhomedir/mkhomedir_helper.c (create_homedir): Drop superfluous
stat() call.
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modules/pam_exec/pam_exec.c (call_exec): Move the descriptor to
STDOUT_FILENO if needed.
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modules/pam_keyinit/pam_keyinit.c (pam_sm_open_session): Log if setregid() fails.
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modules/pam_filter/pam_filter.c (set_filter): Close descriptors when fork() fails.
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modules/pam_echo/pam_echo.c (pam_echo): Close fd in error cases.
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modules/pam_tty_audit/pam_tty_audit.c (nl_recv): Initialize also
msg_flags.
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Problem found by Robin Hack <rhack@redhat.com>.
modules/pam_tally2/pam_tally2.c (get_tally): Do not depend on file size
just try to read it.
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* modules/pam_access/pam_access.c (login_access): Reorder condition
so line is not accessed when uninitialized.
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modules/pam_lastlog/pam_lastlog.c (last_login_write): Properly clean up last_login
structure before use.
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* modules/pam_pwhistory/opasswd.c (parse_entry): Test for missing fields
in opasswd entry and return error.
* modules/pam_unix/passverify.c (save_old_password): Test for missing fields
in opasswd entry and skip it.
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modules/pam_limits/limits.conf.5.xml: Correct documentation of nofile limit.
modules/pam_limits/limits.conf: Likewise.
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modules/pam_limits/limits.conf.5.xml: clarify documentation of
maxlogins and maxsyslogins limits.
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modules/pam_unix/pam_unix_passwd.c (check_old_password): Check for
NULL return from Goodcrypt_md5().
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* modules/pam_unix/md5_crypt.c (crypt_md5): Check for NULL return from malloc().
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modules/pam_loginuid/pam_loginuid.8.xml: Document one more possible case
of PAM_IGNORE return value.
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modules/pam_loginuid/pam_loginuid.8.xml: Document the possible return
values.
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pam_timestamp uses values of PAM_RUSER and PAM_TTY as components of
the timestamp pathname it creates, so extra care should be taken to
avoid potential directory traversal issues.
* modules/pam_timestamp/pam_timestamp.c (check_tty): Treat
"." and ".." tty values as invalid.
(get_ruser): Treat "." and ".." ruser values, as well as any ruser
value containing '/', as invalid.
Fixes CVE-2014-2583.
Reported-by: Sebastian Krahmer <krahmer@suse.de>
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modules/pam_userdb/pam_userdb.8.xml: Document that .db suffix
should not be used and correct the example.
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SELinux expects canonical user name for example without domain component.
* modules/pam_selinux/pam_selinux.c (compute_exec_context): Canonicalize user name with pam_modutil_getpwnam().
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This change introduces pam_modutil_sanitize_helper_fds - a new function
that redirects standard descriptors and closes all other descriptors.
pam_modutil_sanitize_helper_fds supports three types of input and output
redirection:
- PAM_MODUTIL_IGNORE_FD: do not redirect at all.
- PAM_MODUTIL_PIPE_FD: redirect to a pipe. For stdin, it is implemented
by creating a pipe, closing its write end, and redirecting stdin to
its read end. Likewise, for stdout/stderr it is implemented by
creating a pipe, closing its read end, and redirecting to its write
end. Unlike stdin redirection, stdout/stderr redirection to a pipe
has a side effect that a process writing to such descriptor should be
prepared to handle SIGPIPE appropriately.
- PAM_MODUTIL_NULL_FD: redirect to /dev/null. For stdin, it is
implemented via PAM_MODUTIL_PIPE_FD because there is no functional
difference. For stdout/stderr, it is classic redirection to
/dev/null.
PAM_MODUTIL_PIPE_FD is usually more suitable due to linux kernel
security restrictions, but when the helper process might be writing to
the corresponding descriptor and termination of the helper process by
SIGPIPE is not desirable, one should choose PAM_MODUTIL_NULL_FD.
* libpam/pam_modutil_sanitize.c: New file.
* libpam/Makefile.am (libpam_la_SOURCES): Add it.
* libpam/include/security/pam_modutil.h (pam_modutil_redirect_fd,
pam_modutil_sanitize_helper_fds): New declarations.
* libpam/libpam.map (LIBPAM_MODUTIL_1.1.9): New interface.
* modules/pam_exec/pam_exec.c (call_exec): Use
pam_modutil_sanitize_helper_fds.
* modules/pam_mkhomedir/pam_mkhomedir.c (create_homedir): Likewise.
* modules/pam_unix/pam_unix_acct.c (_unix_run_verify_binary): Likewise.
* modules/pam_unix/pam_unix_passwd.c (_unix_run_update_binary):
Likewise.
* modules/pam_unix/support.c (_unix_run_helper_binary): Likewise.
* modules/pam_xauth/pam_xauth.c (run_coprocess): Likewise.
* modules/pam_unix/support.h (MAX_FD_NO): Remove.
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