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--- a/svr-authpubkey.c
+++ b/svr-authpubkey.c
@@ -386,14 +386,19 @@ static int checkpubkey(const char* keyal
goto out;
}
- /* we don't need to check pw and pw_dir for validity, since
- * its been done in checkpubkeyperms. */
- len = strlen(ses.authstate.pw_dir);
- /* allocate max required pathname storage,
- * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
- filename = m_malloc(len + 22);
- snprintf(filename, len + 22, "%s/.ssh/authorized_keys",
- ses.authstate.pw_dir);
+ if (ses.authstate.pw_uid != 0) {
+ /* we don't need to check pw and pw_dir for validity, since
+ * its been done in checkpubkeyperms. */
+ len = strlen(ses.authstate.pw_dir);
+ /* allocate max required pathname storage,
+ * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
+ filename = m_malloc(len + 22);
+ snprintf(filename, len + 22, "%s/.ssh/authorized_keys",
+ ses.authstate.pw_dir);
+ } else {
+ filename = m_malloc(30);
+ strncpy(filename, "/etc/dropbear/authorized_keys", 30);
+ }
#if DROPBEAR_SVR_MULTIUSER
/* open the file as the authenticating user. */
@@ -474,27 +479,36 @@ static int checkpubkeyperms() {
goto out;
}
- /* allocate max required pathname storage,
- * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
- len += 22;
- filename = m_malloc(len);
- strlcpy(filename, ses.authstate.pw_dir, len);
-
- /* check ~ */
- if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
- goto out;
- }
+ if (ses.authstate.pw_uid == 0) {
+ if (checkfileperm("/etc/dropbear") != DROPBEAR_SUCCESS) {
+ goto out;
+ }
+ if (checkfileperm("/etc/dropbear/authorized_keys") != DROPBEAR_SUCCESS) {
+ goto out;
+ }
+ } else {
+ /* allocate max required pathname storage,
+ * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
+ len += 22;
+ filename = m_malloc(len);
+ strlcpy(filename, ses.authstate.pw_dir, len);
+
+ /* check ~ */
+ if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
+ goto out;
+ }
- /* check ~/.ssh */
- strlcat(filename, "/.ssh", len);
- if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
- goto out;
- }
+ /* check ~/.ssh */
+ strlcat(filename, "/.ssh", len);
+ if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
+ goto out;
+ }
- /* now check ~/.ssh/authorized_keys */
- strlcat(filename, "/authorized_keys", len);
- if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
- goto out;
+ /* now check ~/.ssh/authorized_keys */
+ strlcat(filename, "/authorized_keys", len);
+ if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
+ goto out;
+ }
}
/* file looks ok, return success */
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