diff options
| author | Andrew Bartlett <abartlet@samba.org> | 2005-11-02 09:51:32 +0000 |
|---|---|---|
| committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 13:45:42 -0500 |
| commit | 1ab27b7fdf0e25636a2b9cc933ee17ded60ad948 (patch) | |
| tree | 637fb9efb158e0a735c0c710fe1738f689a52aa4 | |
| parent | d59807eba4dda1454eb63e5408af0bdf1563dfa5 (diff) | |
| download | samba-1ab27b7fdf0e25636a2b9cc933ee17ded60ad948.tar.gz samba-1ab27b7fdf0e25636a2b9cc933ee17ded60ad948.tar.bz2 samba-1ab27b7fdf0e25636a2b9cc933ee17ded60ad948.zip | |
r11477: This seems really nasty, but as I understand it an attacker cannot
change this checksum, as it is inside the encrypted packets.
Where the client (such as Samba3) fakes up GSSAPI, allow it to
continue. We can't rid the world of all Samba3 and similar clients...
Andrew Bartlett
(This used to be commit e60cdb63fb37e44252f83a56a6302f0bd22dec4d)
| -rw-r--r-- | source4/heimdal/lib/gssapi/8003.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/source4/heimdal/lib/gssapi/8003.c b/source4/heimdal/lib/gssapi/8003.c index b60d2608e2..0062068d5b 100644 --- a/source4/heimdal/lib/gssapi/8003.c +++ b/source4/heimdal/lib/gssapi/8003.c @@ -182,9 +182,18 @@ gssapi_krb5_verify_8003_checksum( *minor_status = 0; return GSS_S_BAD_BINDINGS; } - + + /* This is the case where Samba3 has built GSSAPI out of + * krb5 the 'dodgy' way. We have to accept the non-GSSAPI + * checksum because windows does */ + + if(cksum->cksumtype != CKSUMTYPE_GSSAPI) { + *flags = 0; + return GSS_S_COMPLETE; + } + /* XXX should handle checksums > 24 bytes */ - if(cksum->cksumtype != CKSUMTYPE_GSSAPI || cksum->checksum.length < 24) { + if(cksum->checksum.length < 24) { *minor_status = 0; return GSS_S_BAD_BINDINGS; } |