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* pam_unix: cleanse crypt dataChristian Göttsche2024-01-211-0/+1
| | | | | Cleanse the crypt data also in the failure branch to sanitize in case of partial data being written.
* modules: zero out crypt_r(3) data before usageChristian Göttsche2024-01-211-2/+1
| | | | The manual page of crypt_r(3) recommends to zero the entire data object.
* pam_unix: clean additional possible sensitive buffersChristian Göttsche2024-01-151-0/+3
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* pam_unix: use more appropriate typesChristian Göttsche2024-01-151-1/+1
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* modules: make use of secure memory erasureChristian Göttsche2023-02-281-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | Use empty initialization of structs to minimize the memset() usage, to reduce the amount of calls which are not sensitive. Non trivial changes: - pam_env: * erase environment variables where possible - pam_exec: * erase responce on error * erase auth token - pam_pwhistory: * erase buffers containing old passwords - pam_selinux: skip overwriting data structure consisting of only pointers to insensitive data, which also gets free'd afterwards (so it currently does not protect against double-free or use-after-free on the member pointers) - pam_unix: erase cipher data in more places - pam_userdb: erase password hashes
* Remove support for legacy xcryptBjörn Esser2021-06-141-3/+1
| | | | | | | | | | | | | | | | Since many distributions are shipping a version of libxcrypt >= 4.0.0 as a replacement for glibc's libcrypt now, older versions of xcrypt, which could be installed in parallel, are not relevant anymore. * configure.ac (AC_CHECK_HEADERS): Remove xcrypt.h. (AC_SEARCH_LIBS): Remove xcrypt. (AC_CHECK_FUNCS): Remove crypt_gensalt_r. (AC_DEFINE): Remove HAVE_LIBXCRYPT. * modules/pam_pwhistory/opasswd.c [HAVE_LIBXCRYPT]: Remove. * modules/pam_unix/bigcrypt.c [HAVE_LIBXCRYPT]: Likewise. * modules/pam_userdb/pam_userdb.c [HAVE_LIBXCRYPT]: Likewise. * modules/pam_unix/passverify.c [HAVE_LIBXCRYPT]: Likewise. (create_password_hash) [HAVE_LIBXCRYPT]: Likewise.
* pam_unix: fix memory leak on error pathThomas M. DuBuisson2020-11-241-0/+6
| | | | | * modules/pam_unix/bigcrypt.c (bigcrypt) [HAVE_CRYPT_R]: Do not leak cdata if crypt_r() fails.
* Fix various typos found using codespell toolDmitry V. Levin2020-03-281-1/+1
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* Add checks for crypt() returning NULL.Tomas Mraz2013-02-081-0/+9
| | | | | modules/pam_pwhistory/opasswd.c (compare_password): Add check for crypt() NULL return. modules/pam_unix/bigcrypt.c (bigcrypt): Likewise.
* Fix whitespace issuesDmitry V. Levin2011-10-261-4/+4
| | | | | | Cleanup trailing whitespaces, indentation that uses spaces before tabs, and blank lines at EOF. Make the project free of warnings reported by git diff --check 4b825dc642cb6eb9a060e54bf8d69288fbee4904 HEAD
* Relevant BUGIDs:Thorsten Kukuk2008-11-301-1/+3
| | | | | | | | | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- 2008-11-29 Thorsten Kukuk <kukuk@thkukuk.de> * configure.in: Check for xcrypt.h, fix typo in libaudit check. * modules/pam_cracklib/pam_cracklib.c: Include xcrypt.h if available. * modules/pam_unix/bigcrypt.c: Likewise. * modules/pam_unix/passverify.c: Likewise. * modules/pam_userdb/pam_userdb.c: Likewise. Patch from Diego Flameeyes Pettenò <flameeyes@gmail.com>
* Relevant BUGIDs: 1836981Tomas Mraz2008-01-241-3/+23
| | | | | | | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- 2008-01-24 Tomas Mraz <t8m@centrum.cz> * modules/pam_unix/bigcrypt.c (bigcrypt): Use crypt_r() when available. * modules/pam_unix/passverify.c (strip_hpux_aging): New function to strip HP/UX aging info from password hash. (verify_pwd_hash): Call strip_hpux_aging(), use crypt_r() when available.
* Relevant BUGIDs:Thorsten Kukuk2006-06-151-2/+6
| | | | | | | | | | | | | | | | | | | | | | Purpose of commit: cleanup Commit summary: --------------- Put bigcrypt prototype in own header instead of an external declaration in every single file calling bigcrypt: 2006-06-15 Thorsten Kukuk <kukuk@thkukuk.de> * modules/pam_unix/bigcrypt.h: New. * modules/pam_unix/Makefile.am: Add bigcrypt.h. * modules/pam_unix/bigcrypt.c: Include bigcrypt.h. * modules/pam_unix/support.c: Include bigcrypt.h, remove own prototype. * modules/pam_unix/bigcrypt_main.c: Include bigcrypt.h, remove own prototype. * modules/pam_unix/pam_unix_passwd.c: Include bigcrypt.h, remove own prototype.
* Relevant BUGIDs: 440107Steve Langasek2001-07-101-1/+6
| | | | | | | | | | Purpose of commit: bugfix/cleanup Commit summary: --------------- Removed superfluous use of static variables in md5 and bigcrypt routines, bringing us a step closer to thread-safeness. Eliminated some variable indirection along the way.
* Initial revisionAndrew G. Morgan2000-06-201-0/+119
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