add ST25TA ndef protection logic

This commit is contained in:
tcprst 2020-09-18 22:01:31 -04:00
parent a32fbd21bd
commit b7ad2cc5e5
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GPG key ID: 9145EAF5121AED25

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@ -52,6 +52,21 @@ static int usage_hf_st_ndef(void) {
return PM3_SUCCESS;
}
static int usage_hf_st_protect(void) {
PrintAndLogEx(NORMAL, "\n Change R/W protection for NFC Data Exchange Format (NDEF)\n");
PrintAndLogEx(NORMAL, "Usage: hf st protect [h] p <pwd> <r|w> <t>");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h : This help");
PrintAndLogEx(NORMAL, " p <pwd> : 16 byte write password");
PrintAndLogEx(NORMAL, " <r|w> : Change (r)ead or (w)rite protection");
PrintAndLogEx(NORMAL, " t : Enable / Disable protection");
PrintAndLogEx(NORMAL, " 0 = Disable (default)");
PrintAndLogEx(NORMAL, " 1 = Enable");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, _YELLOW_(" hf st protect p 82E80053D4CA5C0B656D852CC696C8A1 r 0"));
return PM3_SUCCESS;
}
// get ST Microelectronics chip model (from UID)
static char *get_st_chip_model(uint8_t pc) {
static char model[40];
@ -138,8 +153,8 @@ static void print_st_cc_info(uint8_t *d, uint8_t n) {
uint16_t maxndef = (d[11] << 8 | d[12]);
PrintAndLogEx(SUCCESS, " max NDEF filesize %u bytes ( 0x%04X )", maxndef, maxndef);
PrintAndLogEx(SUCCESS, " ----- " _CYAN_("access rights") " -------");
PrintAndLogEx(SUCCESS, " read ( %02X )", d[13]);
PrintAndLogEx(SUCCESS, " write ( %02X )", d[14]);
PrintAndLogEx(SUCCESS, " read ( %02X ) protection: %s", d[13], ((d[13] & 0x80) == 0x80) ? _RED_("enabled") : _GREEN_("disabled"));
PrintAndLogEx(SUCCESS, " write ( %02X ) protection: %s", d[14], ((d[14] & 0x80) == 0x80) ? _RED_("enabled") : _GREEN_("disabled"));
PrintAndLogEx(SUCCESS, " }");
PrintAndLogEx(SUCCESS, "----------------- " _CYAN_("raw") " -----------------");
PrintAndLogEx(SUCCESS, "%s", sprint_hex_inrow(d, n));
@ -443,6 +458,138 @@ static int cmd_hf_st_ndef(const char *Cmd) {
return PM3_SUCCESS;
}
static int cmd_hf_st_protect(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
int pwdlen = 0;
uint8_t pwd[16] = {0};
int statelen = 3;
uint8_t state[3] = {0x26, 0, 0};
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_hf_st_protect();
case '0':
state[0] = 0x26; //Disable protection
cmdp++;
break;
case '1':
state[0] = 0x28; //Enable protection
cmdp++;
break;
case 'r':
state[2] = 0x01;
cmdp++;
break;
case 'w':
state[2] = 0x02;
cmdp++;
break;
case 'p':
param_gethex_ex(Cmd, cmdp + 1, pwd, &pwdlen);
pwdlen >>= 1;
cmdp += 2;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (state[2] == 0x00) {
PrintAndLogEx(WARNING, "Missing action (r)ead or (w)rite");
errors = true;
}
if (pwdlen != 16) {
PrintAndLogEx(WARNING, "Missing 16 byte password");
errors = true;
}
if (errors || cmdp == 0) return usage_hf_st_protect();
bool activate_field = true;
bool keep_field_on = true;
uint8_t response[PM3_CMD_DATA_SIZE];
int resplen = 0;
// --------------- Select NDEF Tag application ----------------
uint8_t aSELECT_AID[80];
int aSELECT_AID_n = 0;
param_gethex_to_eol("00a4040007d276000085010100", 0, aSELECT_AID, sizeof(aSELECT_AID), &aSELECT_AID_n);
int res = ExchangeAPDU14a(aSELECT_AID, aSELECT_AID_n, activate_field, keep_field_on, response, sizeof(response), &resplen);
if (res)
return res;
if (resplen < 2)
return PM3_ESOFT;
uint16_t sw = get_sw(response, resplen);
if (sw != 0x9000) {
PrintAndLogEx(ERR, "Selecting NDEF aid failed (%04x - %s).", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
return PM3_ESOFT;
}
activate_field = false;
keep_field_on = true;
// --------------- Select NDEF file ----------------
uint8_t aSELECT_FILE_NDEF[30];
int aSELECT_FILE_NDEF_n = 0;
param_gethex_to_eol("00a4000c020001", 0, aSELECT_FILE_NDEF, sizeof(aSELECT_FILE_NDEF), &aSELECT_FILE_NDEF_n);
res = ExchangeAPDU14a(aSELECT_FILE_NDEF, aSELECT_FILE_NDEF_n, activate_field, keep_field_on, response, sizeof(response), &resplen);
if (res)
return res;
sw = get_sw(response, resplen);
if (sw != 0x9000) {
PrintAndLogEx(ERR, "Selecting NDEF file failed (%04x - %s).", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
return PM3_ESOFT;
}
// --------------- VERIFY ----------------
uint8_t aVERIFY[30];
int aVERIFY_n = 0;
// need to provide 16byte password
param_gethex_to_eol("0020000210", 0, aVERIFY, sizeof(aVERIFY), &aVERIFY_n);
memcpy(aVERIFY + aVERIFY_n, pwd, pwdlen);
res = ExchangeAPDU14a(aVERIFY, aVERIFY_n + pwdlen, activate_field, keep_field_on, response, sizeof(response), &resplen);
if (res)
return res;
sw = get_sw(response, resplen);
if (sw != 0x9000) {
PrintAndLogEx(ERR, "Verify password failed (%04x - %s).", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
return PM3_ESOFT;
}
// --------------- Change protection ----------------
keep_field_on = false;
uint8_t aPROTECT[30];
int aPROTECT_n = 0;
param_gethex_to_eol("00", 0, aPROTECT, sizeof(aPROTECT), &aPROTECT_n);
memcpy(aPROTECT + aPROTECT_n, state, statelen);
res = ExchangeAPDU14a(aPROTECT, aPROTECT_n + statelen, activate_field, keep_field_on, response, sizeof(response), &resplen);
if (res)
return res;
sw = get_sw(response, resplen);
if (sw != 0x9000) {
PrintAndLogEx(ERR, "changing protection failed (%04x - %s).", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
return PM3_ESOFT;
}
PrintAndLogEx(SUCCESS, " %s protection ( %s )", ((state[2] & 0x01) == 0x01) ? _YELLOW_("read") : _YELLOW_("write"),
((state[0] & 0x28) == 0x28) ? _RED_("enabled") : _GREEN_("disabled"));
return PM3_SUCCESS;
}
static int cmd_hf_st_list(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
CmdTraceList("7816");
@ -450,11 +597,12 @@ static int cmd_hf_st_list(const char *Cmd) {
}
static command_t CommandTable[] = {
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"info", cmd_hf_st_info, IfPm3Iso14443a, "Tag information"},
{"list", cmd_hf_st_list, AlwaysAvailable, "List ISO 14443A/7816 history"},
{"ndef", cmd_hf_st_ndef, AlwaysAvailable, "read NDEF file on tag"},
{"sim", cmd_hf_st_sim, IfPm3Iso14443a, "Fake ISO 14443A/ST tag"},
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"info", cmd_hf_st_info, IfPm3Iso14443a, "Tag information"},
{"list", cmd_hf_st_list, AlwaysAvailable, "List ISO 14443A/7816 history"},
{"ndef", cmd_hf_st_ndef, AlwaysAvailable, "read NDEF file on tag"},
{"protect", cmd_hf_st_protect, IfPm3Iso14443a, "change protection on tag"},
{"sim", cmd_hf_st_sim, IfPm3Iso14443a, "Fake ISO 14443A/ST tag"},
{NULL, NULL, NULL, NULL}
};