Vulnerabilities > CVE-2016-10396 - Algorithmic Complexity vulnerability in Ipsec-Tools 0.8.2
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
The racoon daemon in IPsec-Tools 0.8.2 contains a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments. The implementation permits a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order such that the worst-case computational complexity is realized in the algorithm utilized to determine if reassembly of the fragments can take place.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 |
Common Weakness Enumeration (CWE)
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-0423-1.NASL description This update for ipsec-tools fixes one issue. This security issue was fixed : - CVE-2016-10396: The racoon daemon contained a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments that allowed a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order (bsc#1047443). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 106787 published 2018-02-13 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106787 title SUSE SLES11 Security Update : ipsec-tools (SUSE-SU-2018:0423-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2018:0423-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(106787); script_version("3.4"); script_cvs_date("Date: 2019/09/10 13:51:46"); script_cve_id("CVE-2016-10396"); script_name(english:"SUSE SLES11 Security Update : ipsec-tools (SUSE-SU-2018:0423-1)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for ipsec-tools fixes one issue. This security issue was fixed : - CVE-2016-10396: The racoon daemon contained a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments that allowed a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order (bsc#1047443). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1047443" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2016-10396/" ); # https://www.suse.com/support/update/announcement/2018/suse-su-20180423-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?10c3703b" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-ipsec-tools-13463=1 SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch dbgsp4-ipsec-tools-13463=1 To bring your system up-to-date, use 'zypper patch'." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ipsec-tools"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/06"); script_set_attribute(attribute:"patch_publication_date", value:"2018/02/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 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/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); 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, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES11", sp:"4", reference:"ipsec-tools-0.7.3-1.38.3.1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ipsec-tools"); }
NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-0424-1.NASL description This update for ipsec-tools fixes one issue. This security issue was fixed : - CVE-2016-10396: The racoon daemon contained a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments that allowed a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order (bsc#1047443). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 106788 published 2018-02-13 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106788 title SUSE SLES12 Security Update : ipsec-tools (SUSE-SU-2018:0424-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2018:0424-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(106788); script_version("3.4"); script_cvs_date("Date: 2019/09/10 13:51:46"); script_cve_id("CVE-2016-10396"); script_name(english:"SUSE SLES12 Security Update : ipsec-tools (SUSE-SU-2018:0424-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for ipsec-tools fixes one issue. This security issue was fixed : - CVE-2016-10396: The racoon daemon contained a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments that allowed a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order (bsc#1047443). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1047443" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2016-10396/" ); # https://www.suse.com/support/update/announcement/2018/suse-su-20180424-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?a76fedf9" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t patch SUSE-SLE-RPI-12-SP2-2018-288=1 SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-288=1 SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-288=1 To bring your system up-to-date, use 'zypper patch'." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ipsec-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ipsec-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ipsec-tools-debugsource"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/06"); script_set_attribute(attribute:"patch_publication_date", value:"2018/02/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 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/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); 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, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"3", reference:"ipsec-tools-0.8.0-19.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", reference:"ipsec-tools-debuginfo-0.8.0-19.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"3", reference:"ipsec-tools-debugsource-0.8.0-19.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", reference:"ipsec-tools-0.8.0-19.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", reference:"ipsec-tools-debuginfo-0.8.0-19.3.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", reference:"ipsec-tools-debugsource-0.8.0-19.3.1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ipsec-tools"); }
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1044.NASL description The racoon daemon in IPsec-Tools 0.8.2 and earlier contains a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments. The implementation permits a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order such that the worst-case computational complexity is realized in the algorithm utilized to determine if reassembly of the fragments can take place. For Debian 7 last seen 2020-03-17 modified 2017-07-31 plugin id 102042 published 2017-07-31 reporter This script is Copyright (C) 2017-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/102042 title Debian DLA-1044-1 : ipsec-tools security update code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DLA-1044-1. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(102042); script_version("3.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2016-10396"); script_name(english:"Debian DLA-1044-1 : ipsec-tools security update"); script_summary(english:"Checks dpkg output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security update." ); script_set_attribute( attribute:"description", value: "The racoon daemon in IPsec-Tools 0.8.2 and earlier contains a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments. The implementation permits a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order such that the worst-case computational complexity is realized in the algorithm utilized to determine if reassembly of the fragments can take place. For Debian 7 'Wheezy', these problems have been fixed in version 1:0.8.0-14+deb7u2. We recommend that you upgrade your ipsec-tools packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2017/07/msg00039.html" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/wheezy/ipsec-tools" ); script_set_attribute( attribute:"solution", value:"Upgrade the affected ipsec-tools, and racoon packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ipsec-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:racoon"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0"); script_set_attribute(attribute:"patch_publication_date", value:"2017/07/29"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/31"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"7.0", prefix:"ipsec-tools", reference:"1:0.8.0-14+deb7u1")) flag++; if (deb_check(release:"7.0", prefix:"racoon", reference:"1:0.8.0-14+deb7u1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_974A6D323FDA11E8AEA4001B216D295B.NASL description Robert Foggia via NetBSD GNATS reports : The ipsec-tools racoon daemon contains a remotely exploitable computational complexity attack when parsing and storing isakmp fragments. The implementation permits a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending isakmp fragment packets in a particular order such that the worst-case computational complexity is realized in the algorithm utilized to determine if reassembly of the fragments can take place. last seen 2020-06-01 modified 2020-06-02 plugin id 109054 published 2018-04-16 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109054 title FreeBSD : ipsec-tools -- remotely exploitable computational-complexity attack (974a6d32-3fda-11e8-aea4-001b216d295b) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-159.NASL description This update for ipsec-tools fixes one issue. This security issue was fixed : - CVE-2016-10396: The racoon daemon contained a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments that allowed a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order (bsc#1047443). This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2018-02-14 plugin id 106814 published 2018-02-14 reporter This script is Copyright (C) 2018-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/106814 title openSUSE Security Update : ipsec-tools (openSUSE-2018-159)