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add change password command

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This commit is contained in:
merlokk 2023-11-06 15:48:18 +02:00
commit 6606225686
3 changed files with 63 additions and 0 deletions
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49
client/src/cmdhfmf.c
View file

@ -8229,6 +8229,54 @@ static int CmdHF14AGen4Save(const char *Cmd) {
return PM3_SUCCESS;
}
// change Gent4 GTU card access password
static int CmdHF14AGen4ChangePwd(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf mf gchpwd",
"Save `magic gen4 gtu` card memory to file (bin/json)",
"hf mf gchpwd --pwd 00000000 --newpwd 01020304"
);
void *argtable[] = {
arg_param_begin,
arg_str0("p", "pwd", "<hex>", "password 4 bytes"),
arg_str0("n", "newpwd", "<hex>", "new password 4 bytes"),
arg_lit0("v", "verbose", "verbose output"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int pwd_len = 0;
uint8_t pwd[4] = {0};
CLIGetHexWithReturn(ctx, 1, pwd, &pwd_len);
int new_pwd_len = 0;
uint8_t new_pwd[4] = {0};
CLIGetHexWithReturn(ctx, 2, new_pwd, &new_pwd_len);
bool verbose = arg_get_lit(ctx, 3);
if (pwd_len != 4) {
PrintAndLogEx(FAILED, "Old password must be 4 bytes long, got " _YELLOW_("%u"), pwd_len);
return PM3_EINVARG;
}
if (new_pwd_len != 4) {
PrintAndLogEx(FAILED, "New password must be 4 bytes long, got " _YELLOW_("%u"), new_pwd_len);
return PM3_EINVARG;
}
int res = mfG4ChangePassword(pwd, new_pwd, verbose);
if (res != PM3_SUCCESS) {
PrintAndLogEx(ERROR, "Change password error");
return res;
}
PrintAndLogEx(SUCCESS, "Change password done successfully.");
return PM3_SUCCESS;
}
static int CmdHF14AGen4_GDM_Cfg(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf mf gdmcfg",
@ -8876,6 +8924,7 @@ static command_t CommandTable[] = {
{"gsave", CmdHF14AGen4Save, IfPm3Iso14443a, "Save dump from card into file or emulator"},
{"gsetblk", CmdHF14AGen4SetBlk, IfPm3Iso14443a, "Write block to card"},
{"gview", CmdHF14AGen4View, IfPm3Iso14443a, "View card"},
{"gchpwd", CmdHF14AGen4ChangePwd, IfPm3Iso14443a, "Change card access password. Warning!"},
{"-----------", CmdHelp, IfPm3Iso14443a, "-------------------- " _CYAN_("magic gen4 GDM") " --------------------------"},
{"gdmcfg", CmdHF14AGen4_GDM_Cfg, IfPm3Iso14443a, "Read config block from card"},
{"gdmsetcfg", CmdHF14AGen4_GDM_SetCfg, IfPm3Iso14443a, "Write config block to card"},

12
client/src/mifare/gen4.c
View file

@ -145,6 +145,18 @@ int mfG4GetFactoryTest(uint8_t *pwd, uint8_t *data, size_t *datalen, bool verbos
return PM3_SUCCESS;
}
int mfG4ChangePassword(uint8_t *pwd, uint8_t *newpwd, bool verbose) {
uint8_t resp[40] = {0};
size_t resplen = 0;
int res = mfG4ExCommand(GEN4_CMD_CHANGE_PASSWORD, pwd, newpwd, 4, resp, &resplen, verbose);
if (res != PM3_SUCCESS) {
return res;
}
return PM3_SUCCESS;
}
int mfG4GetBlock(uint8_t *pwd, uint8_t blockno, uint8_t *data, uint8_t workFlags) {
struct p {
uint8_t blockno;

2
client/src/mifare/gen4.h
View file

@ -42,4 +42,6 @@ int mfG4GetFactoryTest(uint8_t *pwd, uint8_t *data, size_t *datalen, bool verbos
int mfG4GetBlock(uint8_t *pwd, uint8_t blockno, uint8_t *data, uint8_t workFlags);
int mfG4SetBlock(uint8_t *pwd, uint8_t blockno, uint8_t *data, uint8_t workFlags);
int mfG4ChangePassword(uint8_t *pwd, uint8_t *newpwd, bool verbose);
#endif