commit a602ced730c88d6b4c0459c9712302fce2a4990c Author: tlyu tlyu@dc483132-0cff-0310-8789-dd5450dbe970 Date: Mon Mar 15 23:50:52 2010 +0000

ticket: 6676 version_fixed: 1.8.1 status: resolved

pull up r23766 from trunk

------------------------------------------------------------------------ r23766 | ghudson | 2010-03-05 12:45:46 -0500 (Fri, 05 Mar 2010) | 10 lines

ticket: 6676 subject: Ignore improperly encoded signedpath AD elements target_version: 1.8.1 tags: pullup

We have some reason to believe Microsoft and Heimdal are both using the authdata value 142 for different purposes, leading to failures in verify_ad_signedpath(). For better interoperability, treat such tickets as unsigned, rather than invalid.

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-8@23809 dc483132-0cff-0310-8789-dd5450dbe970

src/kdc/kdc_authdata.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) --- diff --git a/src/kdc/kdc_authdata.c b/src/kdc/kdc_authdata.c index 5097558..b5de64d 100644 --- a/src/kdc/kdc_authdata.c +++ b/src/kdc/kdc_authdata.c @@ -934,8 +934,12 @@ verify_ad_signedpath(krb5_context context, enc_sp.length = sp_authdata[0]->length;

code = decode_krb5_ad_signedpath(&enc_sp, &sp); - if (code != 0) + if (code != 0) { + /* Treat an invalid signedpath authdata element as a missing one, since + * we believe MS is using the same number for something else. */ + code = 0; goto cleanup; + }

code = verify_ad_signedpath_checksum(context, krbtgt,