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Hacking #1291

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Hacking #1291

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14 changes: 14 additions & 0 deletions starter/main.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
#include <linux/capability.h>
#include <linux/limits.h>
#include <linux/prctl.h>
#include <sys/stat.h>

#include "starter/privileged_service_protocol.h"
#include "starter/privileged_service_server.h"
Expand Down Expand Up @@ -166,6 +167,19 @@ int main(int argc, char** argv) {
}

envoy_args.push_back(nullptr);

// Get the file's owner UID
struct stat file_stat;
if (stat(path, &file_stat) != 0) {
perror("stat failed");
exit(1);
}
// Switch to the target user
if (setuid(file_stat.st_uid) != 0) {
perror("setuid failed");
exit(1);
}

execv(path, &envoy_args[0]);
perror("execv");
exit(1);
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