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-rw-r--r--modules/pam_unix/support.c8
-rw-r--r--modules/pam_unix/unix_chkpwd.c13
2 files changed, 17 insertions, 4 deletions
diff --git a/modules/pam_unix/support.c b/modules/pam_unix/support.c
index b695b8db..e2a30646 100644
--- a/modules/pam_unix/support.c
+++ b/modules/pam_unix/support.c
@@ -689,7 +689,7 @@ int _unix_verify_password(pam_handle_t * pamh, const char *name
D(("user has empty password - access denied"));
retval = PAM_AUTH_ERR;
}
- } else if (!p || (*salt == '*') || (salt_len < 13)) {
+ } else if (!p || (*salt == '*')) {
retval = PAM_AUTH_ERR;
} else {
if (!strncmp(salt, "$1$", 3)) {
@@ -698,6 +698,12 @@ int _unix_verify_password(pam_handle_t * pamh, const char *name
_pam_delete(pp);
pp = Brokencrypt_md5(p, salt);
}
+ } else if (*salt == '$') {
+ /*
+ * Ok, we don't know the crypt algorithm, but maybe
+ * libcrypt nows about it? We should try it.
+ */
+ pp = x_strdup (crypt(p, salt));
} else {
pp = bigcrypt(p, salt);
}
diff --git a/modules/pam_unix/unix_chkpwd.c b/modules/pam_unix/unix_chkpwd.c
index 407909a4..87d29256 100644
--- a/modules/pam_unix/unix_chkpwd.c
+++ b/modules/pam_unix/unix_chkpwd.c
@@ -40,9 +40,7 @@ static int selinux_enabled=-1;
#include <security/_pam_macros.h>
#include "md5.h"
-
-extern char *crypt(const char *key, const char *salt);
-extern char *bigcrypt(const char *key, const char *salt);
+#include "bigcrypt.h"
/* syslogging function for errors and other information */
@@ -205,6 +203,15 @@ static int _unix_verify_password(const char *name, const char *p, int nullok)
if (strcmp(pp, salt) == 0)
retval = PAM_SUCCESS;
}
+ } else if (*salt == '$') {
+ /*
+ * Ok, we don't know the crypt algorithm, but maybe
+ * libcrypt nows about it? We should try it.
+ */
+ pp = x_strdup (crypt(p, salt));
+ if (strcmp(pp, salt) == 0) {
+ retval = PAM_SUCCESS;
+ }
} else if ((*salt == '*') || (salt_len < 13)) {
retval = PAM_AUTH_ERR;
} else {