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authorRalph Boehme <slow@samba.org>2019-03-01 18:57:23 +0100
committerKarolin Seeger <kseeger@samba.org>2019-03-11 12:25:05 +0000
commit43957ab96e7f62c83fe3e46e7467b974ea44f99b (patch)
tree3a67ff8c758655379e93641bef14a8f036f76157
parent4fe9eff4dd63cd7aca4caa63057e27399cc3b929 (diff)
downloadsamba-43957ab96e7f62c83fe3e46e7467b974ea44f99b.tar.gz
libcli/security: fix handling of deny type ACEs in access_check_max_allowed()
Deny ACEs must always be evaluated against explicitly granted rights from previous ACEs. BUG: https://bugzilla.samba.org/show_bug.cgi?id=13812 Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org> (cherry picked from commit 8d355dd9769e8990ce998b4c9f28977669b43616) Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org> Autobuild-Date(v4-9-test): Mon Mar 11 12:25:05 UTC 2019 on sn-devel-144
-rw-r--r--libcli/security/access_check.c2
-rw-r--r--selftest/knownfail.d/smb2.acls4
2 files changed, 1 insertions, 5 deletions
diff --git a/libcli/security/access_check.c b/libcli/security/access_check.c
index d1d57eecef2..322f4fdb0c6 100644
--- a/libcli/security/access_check.c
+++ b/libcli/security/access_check.c
@@ -173,7 +173,7 @@ static uint32_t access_check_max_allowed(const struct security_descriptor *sd,
break;
case SEC_ACE_TYPE_ACCESS_DENIED:
case SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
- denied |= ace->access_mask;
+ denied |= ~granted & ace->access_mask;
break;
default: /* Other ACE types not handled/supported */
break;
diff --git a/selftest/knownfail.d/smb2.acls b/selftest/knownfail.d/smb2.acls
deleted file mode 100644
index b76a3c719ce..00000000000
--- a/selftest/knownfail.d/smb2.acls
+++ /dev/null
@@ -1,4 +0,0 @@
-^samba3.smb2.acls.OWNER-RIGHTS-DENY1\(ad_dc\)
-^samba3.smb2.acls.OWNER-RIGHTS-DENY1\(nt4_dc\)
-^samba3.smb2.acls.DENY1\(ad_dc\)
-^samba3.smb2.acls.DENY1\(nt4_dc\)