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Diffstat (limited to 'modules/pam_unix/unix_chkpwd.c')
-rw-r--r--modules/pam_unix/unix_chkpwd.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/modules/pam_unix/unix_chkpwd.c b/modules/pam_unix/unix_chkpwd.c
index 11ac3aac..5f872d27 100644
--- a/modules/pam_unix/unix_chkpwd.c
+++ b/modules/pam_unix/unix_chkpwd.c
@@ -101,7 +101,10 @@ int main(int argc, char *argv[])
/* if the caller specifies the username, verify that user
matches it */
if (strcmp(user, argv[1])) {
- return PAM_AUTH_ERR;
+ user = argv[1];
+ /* no match -> permanently change to the real user and proceed */
+ if (setuid(getuid()) != 0)
+ return PAM_AUTH_ERR;
}
}