rfidrig/proxmark3
0
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2026-05-12 11:18:11 -07:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #3023 from aaronjamt/patch-1

Browse Source 
Proper TLV parsing for Seos
This commit is contained in:
Iceman
2025-11-15 05:45:12 +01:00
committed by GitHub
parent 210b9a704c 9ee9b1a73f
commit ebe431b420
1 changed files with 11 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
client/src/cmdhfseos.c
+11 -1
View File
@@ -550,14 +550,24 @@ static int select_DF_verify(uint8_t *response, uint8_t response_length, uint8_t
// Extract everything before the 8E tag
int res = PM3_EWRONGANSWER;
for (int i = 0; i < response_length; i++) {
for (int i = 0; i < response_length - 2;) {
// extract MAC
if (response[i] == 0x8E) {
if (response[i+1] != MAC_value_len) {
goto out;
}
// Ensure there's enough bytes remaining
// in the response for the full MAC
if (i+2+MAC_value_len > response_length) {
goto out;
}
memcpy(input, response, i);
memcpy(MAC_value, response + (i + 2), MAC_value_len);
res = PM3_SUCCESS;
break;
}
// skip to next tag
i += 2 + response[i+1];
}
if (res != PM3_SUCCESS) {
goto out;