Blame krb5-1.7-rcp-markus.patch
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Fix for CAN-2004-0175, based on Markus Friedl's fix for OpenSSH scp.
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diff -up krb5-1.7/src/appl/bsd/krcp.c krb5-1.7/src/appl/bsd/krcp.c
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--- krb5-1.7/src/appl/bsd/krcp.c 2009-06-04 14:27:20.000000000 -0400
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+++ krb5-1.7/src/appl/bsd/krcp.c 2009-06-04 14:27:20.000000000 -0400
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@@ -1038,6 +1038,10 @@ void sink(argc, argv)
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size = size * 10 + (*cp++ - '0');
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if (*cp++ != ' ')
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SCREWUP("size not delimited");
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+ if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
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+ error("error: unexpected filename: %s", cp);
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+ exit(1);
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+ }
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if (targisdir) {
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if(strlen(targ) + strlen(cp) + 2 >= sizeof(nambuf))
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SCREWUP("target name too long");
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@@ -1051,6 +1055,8 @@ void sink(argc, argv)
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nambuf[sizeof(nambuf) - 1] = '\0';
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exists = stat(nambuf, &stb) == 0;
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if (cmdbuf[0] == 'D') {
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+ if (!iamrecursive)
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+ SCREWUP("received directory without -r");
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if (exists) {
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if ((stb.st_mode&S_IFMT) != S_IFDIR) {
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errno = ENOTDIR;
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