Vulnerabilities > CVE-2019-6444 - Out-of-bounds Read vulnerability in Ntpsec 1.1.0/1.1.1/1.1.2

047910
CVSS 6.4 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
ntpsec
CWE-125
nessus
exploit available

Summary

An issue was discovered in NTPsec before 1.1.3. process_control() in ntp_control.c has a stack-based buffer over-read because attacker-controlled data is dereferenced by ntohl() in ntpd.

Vulnerable Configurations

Part Description Count
Application
Ntpsec
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Overread Buffers
    An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Exploit-Db

fileexploits/linux/dos/46176.py
idEDB-ID:46176
last seen2019-01-16
modified2019-01-16
platformlinux
port123
published2019-01-16
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/46176
titleNTPsec 1.1.2 - 'ntp_control' Out-of-Bounds Read (PoC)
typedos

Nessus

NASL familySuSE Local Security Checks
NASL idOPENSUSE-2019-82.NASL
descriptionThis update for ntpsec to version 1.1.3 fixes the following issues : Security issues fixed : - CVE-2019-6442: Fixed a out of bounds write via a malformed config request (boo#1122132) - CVE-2019-6443: Fixed a stack-based buffer over-read in the ctl_getitem function (boo#1122144) - CVE-2019-6444: Fixed a stack-based buffer over-read in the process_control function (boo#1122134) - CVE-2019-6445: Fixed a NULL pointer dereference in the ctl_getitem function (boo#1122131)
last seen2020-06-01
modified2020-06-02
plugin id121340
published2019-01-24
reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/121340
titleopenSUSE Security Update : ntpsec (openSUSE-2019-82)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2019-82.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(121340);
  script_version("1.2");
  script_cvs_date("Date: 2019/04/02 21:54:17");

  script_cve_id("CVE-2019-6442", "CVE-2019-6443", "CVE-2019-6444", "CVE-2019-6445");

  script_name(english:"openSUSE Security Update : ntpsec (openSUSE-2019-82)");
  script_summary(english:"Check for the openSUSE-2019-82 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for ntpsec to version 1.1.3 fixes the following issues :

Security issues fixed :

  - CVE-2019-6442: Fixed a out of bounds write via a
    malformed config request (boo#1122132)

  - CVE-2019-6443: Fixed a stack-based buffer over-read in
    the ctl_getitem function (boo#1122144)

  - CVE-2019-6444: Fixed a stack-based buffer over-read in
    the process_control function (boo#1122134)

  - CVE-2019-6445: Fixed a NULL pointer dereference in the
    ctl_getitem function (boo#1122131)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1122131"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1122132"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1122134"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1122144"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ntpsec packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntpsec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntpsec-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntpsec-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntpsec-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python3-ntp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python3-ntp-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/24");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(x86_64)$") audit(AUDIT_ARCH_NOT, "x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE15.0", reference:"ntpsec-1.1.3-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ntpsec-debuginfo-1.1.3-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ntpsec-debugsource-1.1.3-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"ntpsec-utils-1.1.3-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"python3-ntp-1.1.3-lp150.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"python3-ntp-debuginfo-1.1.3-lp150.2.3.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ntpsec / ntpsec-debuginfo / ntpsec-debugsource / ntpsec-utils / etc");
}

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/151196/ntpsec112ntpcontrol-oobread.txt
idPACKETSTORM:151196
last seen2019-01-17
published2019-01-16
reporterMagnus Klaaborg Stubman
sourcehttps://packetstormsecurity.com/files/151196/NTPsec-1.1.2-ntp_control-Out-Of-Bounds-Read.html
titleNTPsec 1.1.2 ntp_control Out-Of-Bounds Read