26 lines
709 B
Diff
26 lines
709 B
Diff
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--- ppp-2.4.3/pppd/plugins/winbind.c 2004-11-05 10:42:31.000000000 +0100
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+++ ppp-2.4.3/pppd/plugins/winbind.c-secfix 2006-07-11 09:22:08.000000000 +0200
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@@ -304,13 +304,21 @@
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}
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if (forkret == 0) {
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+ uid_t uid = getuid();
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/* child process */
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close(child_out[0]);
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close(child_in[1]);
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/* run winbind as the user that invoked pppd */
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setgid(getgid());
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- setuid(getuid());
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+ if (-1 == setuid(uid)) {
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+ perror("pppd/winbind: could not setuid");
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+ exit(1);
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+ }
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+ if (getuid() != uid) {
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+ perror("pppd/winbind: could not setuid to orig uid");
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+ exit(1);
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+ }
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execl("/bin/sh", "sh", "-c", ntlm_auth, NULL);
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perror("pppd/winbind: could not exec /bin/sh");
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exit(1);
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