Description of problem: When using pam_abl in conjuction with openssh, a user can try to authenticate several times in the same ssh connection. Failing to login will only be counted as 1 failed authentication attempt instead of the 6 (default) failed attempts. Version-Release number of selected component (if applicable): pam_abl 0.2.3-6.fc10 openssh-server 5.1p1-3.fc10 How reproducible: Always Steps to Reproduce: 1. install pam_abl and openssh-server and set up pam_abl 2. initiate an ssh connection (I'm using putty) 3. try to authenticate as a user with a wrong password 4. loop step 3 until the connection is closed because of too many failed attempts (by default should be 6) Actual results: * look at the pam_abl database status: only 1 failed attempt is recorded Expected results: * 6 failed attempts should have been recorded to pam_abl DB. Additional info: * this bug was related to a bug in openssh which has been fixed in 4.7p3 I think (at least it is fixed in 4.8) * the other part of the bug is due to a missing fix in pam_abl "also record attempts on consecutive auth tries" see (http://pam-abl.svn.sourceforge.net/viewvc/pam-abl?view=rev&revision=13) * The fix applies cleanly on the pam_ldap.c file after all fixes included in current SRPM. I can report that after applying the fix, pam_abl works as expected: -------- --- pam_abl.c 2007/10/03 10:42:16 12 +++ pam_abl.c 2007/10/03 21:14:48 13 @@ -356,10 +356,15 @@ PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv) { abl_args *args; - int err = PAM_SUCCESS; + const void *prev_args; + int err; /*log_debug(NULL, "pam_sm_authenticate(), flags=%08x", flags);*/ + if (pam_get_data(pamh, DATA_NAME, &prev_args) == PAM_SUCCESS) { + record_attempt(prev_args); + } + if (args = malloc(sizeof(abl_args)), NULL == args) { return PAM_BUF_ERR; } -------- Regards, Thibault
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Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.