59 lines
2.5 KiB
Diff
59 lines
2.5 KiB
Diff
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From 4f86beeaf3408383385ee99a74520a805dd63c0f Mon Sep 17 00:00:00 2001
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From: Tim Beale <timbeale@catalyst.net.nz>
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Date: Tue, 13 Nov 2018 12:24:16 +1300
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Subject: [PATCH 15/17] CVE-2018-16857 dsdb/util: Correctly treat
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lockOutObservationWindow as 64-bit int
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Commit 442a38c918ae1666b35 refactored some code into a new
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get_lockout_observation_window() function. However, in moving the code,
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an ldb_msg_find_attr_as_int64() inadvertently got converted to a
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ldb_msg_find_attr_as_int().
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ldb_msg_find_attr_as_int() will only work for values up to -2147483648
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(about 3.5 minutes in MS timestamp form). Unfortunately, the automated
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tests used a low enough timeout that they still worked, however,
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password lockout would not work with the Samba default settings.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13683
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Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
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Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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---
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selftest/knownfail.d/password_lockout | 2 --
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source4/dsdb/common/util.c | 10 +++++-----
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2 files changed, 5 insertions(+), 7 deletions(-)
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diff --git a/selftest/knownfail.d/password_lockout b/selftest/knownfail.d/password_lockout
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index 305bcbdef25..a4e37a84c21 100644
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--- a/selftest/knownfail.d/password_lockout
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+++ b/selftest/knownfail.d/password_lockout
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@@ -1,4 +1,2 @@
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samba4.ldap.password_lockout.python\(ad_dc_ntvfs\).__main__.PasswordTestsWithDefaults.test_pso_login_lockout_krb5\(ad_dc_ntvfs\)
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samba4.ldap.password_lockout.python\(ad_dc_ntvfs\).__main__.PasswordTestsWithDefaults.test_pso_login_lockout_ntlm\(ad_dc_ntvfs\)
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-samba4.ldap.password_lockout.python\(ad_dc_ntvfs\).__main__.PasswordTestsWithDefaults.test_login_lockout_ntlm\(ad_dc_ntvfs\)
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-samba4.ldap.password_lockout.python\(ad_dc_ntvfs\).__main__.PasswordTestsWithDefaults.test_login_lockout_krb5\(ad_dc_ntvfs\)
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diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
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index 193fa2ae653..438a29e1773 100644
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--- a/source4/dsdb/common/util.c
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+++ b/source4/dsdb/common/util.c
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@@ -5400,12 +5400,12 @@ static int64_t get_lockout_observation_window(struct ldb_message *domain_msg,
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struct ldb_message *pso_msg)
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{
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if (pso_msg != NULL) {
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- return ldb_msg_find_attr_as_int(pso_msg,
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- "msDS-LockoutObservationWindow",
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- 0);
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+ return ldb_msg_find_attr_as_int64(pso_msg,
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+ "msDS-LockoutObservationWindow",
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+ 0);
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} else {
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- return ldb_msg_find_attr_as_int(domain_msg,
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- "lockOutObservationWindow", 0);
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+ return ldb_msg_find_attr_as_int64(domain_msg,
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+ "lockOutObservationWindow", 0);
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}
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}
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--
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2.17.1
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