Amazing-Mirror/fragattacks
1
0
Fork 0
mirror of https://github.com/vanhoefm/fragattacks.git synced 2024-11-29 02:38:22 -05:00
Code Issues Projects Releases Wiki Activity

FT: Validate SNonce and ANonce values during FT Protocol in supplicant

Browse Source
This commit is contained in:
Jouni Malinen 2010-04-09 17:02:13 +03:00 committed by Jouni Malinen
parent 579ce77122
commit 148fb67d5e
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
src/rsn_supp/wpa_ft.c
View File

@ -586,6 +586,15 @@ int wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
return -1; return -1;
} }
if (os_memcmp(ftie->snonce, sm->snonce, WPA_NONCE_LEN) != 0) {
wpa_printf(MSG_DEBUG, "FT: SNonce mismatch in FTIE");
wpa_hexdump(MSG_DEBUG, "FT: Received SNonce",
ftie->snonce, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "FT: Expected SNonce",
sm->snonce, WPA_NONCE_LEN);
return -1;
}
if (parse.r0kh_id == NULL) { if (parse.r0kh_id == NULL) {
wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE"); wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE");
return -1; return -1;
@ -618,6 +627,7 @@ int wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
wpa_hexdump(MSG_DEBUG, "FT: R1KH-ID", sm->r1kh_id, FT_R1KH_ID_LEN); wpa_hexdump(MSG_DEBUG, "FT: R1KH-ID", sm->r1kh_id, FT_R1KH_ID_LEN);
wpa_hexdump(MSG_DEBUG, "FT: SNonce", sm->snonce, WPA_NONCE_LEN); wpa_hexdump(MSG_DEBUG, "FT: SNonce", sm->snonce, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "FT: ANonce", ftie->anonce, WPA_NONCE_LEN); wpa_hexdump(MSG_DEBUG, "FT: ANonce", ftie->anonce, WPA_NONCE_LEN);
os_memcpy(sm->anonce, ftie->anonce, WPA_NONCE_LEN);
wpa_derive_pmk_r1(sm->pmk_r0, sm->pmk_r0_name, sm->r1kh_id, wpa_derive_pmk_r1(sm->pmk_r0, sm->pmk_r0_name, sm->r1kh_id,
sm->own_addr, sm->pmk_r1, sm->pmk_r1_name); sm->own_addr, sm->pmk_r1, sm->pmk_r1_name);
wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", sm->pmk_r1, PMK_LEN); wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", sm->pmk_r1, PMK_LEN);
@ -860,6 +870,24 @@ int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies,
return -1; return -1;
} }
if (os_memcmp(ftie->snonce, sm->snonce, WPA_NONCE_LEN) != 0) {
wpa_printf(MSG_DEBUG, "FT: SNonce mismatch in FTIE");
wpa_hexdump(MSG_DEBUG, "FT: Received SNonce",
ftie->snonce, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "FT: Expected SNonce",
sm->snonce, WPA_NONCE_LEN);
return -1;
}
if (os_memcmp(ftie->anonce, sm->anonce, WPA_NONCE_LEN) != 0) {
wpa_printf(MSG_DEBUG, "FT: ANonce mismatch in FTIE");
wpa_hexdump(MSG_DEBUG, "FT: Received ANonce",
ftie->anonce, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "FT: Expected ANonce",
sm->anonce, WPA_NONCE_LEN);
return -1;
}
if (parse.r0kh_id == NULL) { if (parse.r0kh_id == NULL) {
wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE"); wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE");
return -1; return -1;