Vulnerabilities > CVE-2015-5146 - Improper Input Validation vulnerability in multiple products
Attack vector
NETWORK Attack complexity
HIGH Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 3 | |
| OS | 2 | |
| Application | 5 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2015-14212.NASL description Security fix for CVE-2015-5146, CVE-2015-5194, CVE-2015-5219, CVE-2015-5195, CVE-2015-5196 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2015-10-12 plugin id 86331 published 2015-10-12 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/86331 title Fedora 22 : ntp-4.2.6p5-33.fc22 (2015-14212) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2015-14212. # include("compat.inc"); if (description) { script_id(86331); script_version("2.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2015-5146", "CVE-2015-5194", "CVE-2015-5195", "CVE-2015-5196", "CVE-2015-5219"); script_xref(name:"FEDORA", value:"2015-14212"); script_name(english:"Fedora 22 : ntp-4.2.6p5-33.fc22 (2015-14212)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "Security fix for CVE-2015-5146, CVE-2015-5194, CVE-2015-5219, CVE-2015-5195, CVE-2015-5196 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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.redhat.com/show_bug.cgi?id=1238136" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1254542" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1254544" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1254547" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1255118" ); # https://lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?0c2495c1" ); script_set_attribute(attribute:"solution", value:"Update the affected ntp package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P"); 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_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:ntp"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:22"); script_set_attribute(attribute:"patch_publication_date", value:"2015/10/11"); script_set_attribute(attribute:"plugin_publication_date", value:"2015/10/12"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2015-2020 Tenable Network Security, Inc."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^22([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 22.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC22", reference:"ntp-4.2.6p5-33.fc22")) 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, "ntp"); }NASL family F5 Networks Local Security Checks NASL id F5_BIGIP_SOL17114.NASL description ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet. (CVE-2015-5146) An attacker can use a specially crafted package to cause ntpd to become unresponsive when all of the following conditions are met : The ntpd configuration has enabled remote configuration. The attacker has knowledge of the configuration password. The attacker has access to a computer entrusted to perform remote configurations. Impact For BIG-IP systems using a default network time protocol (NTP) configuration, there is no impact. However, BIG-IP systems with an NTP configuration that is customized in line with the requirements of the advisory may be vulnerable. last seen 2020-06-01 modified 2020-06-02 plugin id 105510 published 2018-01-03 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/105510 title F5 Networks BIG-IP : NTP vulnerability (K17114) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from F5 Networks BIG-IP Solution K17114. # # The text description of this plugin is (C) F5 Networks. # include("compat.inc"); if (description) { script_id(105510); script_version("3.5"); script_cvs_date("Date: 2019/01/04 10:03:40"); script_cve_id("CVE-2015-5146"); script_bugtraq_id(75589); script_name(english:"F5 Networks BIG-IP : NTP vulnerability (K17114)"); script_summary(english:"Checks the BIG-IP version."); script_set_attribute( attribute:"synopsis", value:"The remote device is missing a vendor-supplied security patch." ); script_set_attribute( attribute:"description", value: "ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet. (CVE-2015-5146) An attacker can use a specially crafted package to cause ntpd to become unresponsive when all of the following conditions are met : The ntpd configuration has enabled remote configuration. The attacker has knowledge of the configuration password. The attacker has access to a computer entrusted to perform remote configurations. Impact For BIG-IP systems using a default network time protocol (NTP) configuration, there is no impact. However, BIG-IP systems with an NTP configuration that is customized in line with the requirements of the advisory may be vulnerable." ); script_set_attribute( attribute:"see_also", value:"https://support.f5.com/csp/article/K17114" ); script_set_attribute( attribute:"solution", value: "Upgrade to one of the non-vulnerable versions listed in the F5 Solution K17114." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:L/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:"potential_vulnerability", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_advanced_firewall_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_acceleration_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_visibility_and_reporting"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_link_controller"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_policy_enforcement_manager"); script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip"); script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_manager"); script_set_attribute(attribute:"patch_publication_date", value:"2015/08/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/03"); 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:"F5 Networks Local Security Checks"); script_dependencies("f5_bigip_detect.nbin"); script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version", "Settings/ParanoidReport"); exit(0); } include("f5_func.inc"); if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); version = get_kb_item("Host/BIG-IP/version"); if ( ! version ) audit(AUDIT_OS_NOT, "F5 Networks BIG-IP"); if ( isnull(get_kb_item("Host/BIG-IP/hotfix")) ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/hotfix"); if ( ! get_kb_item("Host/BIG-IP/modules") ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/modules"); sol = "K17114"; vmatrix = make_array(); if (report_paranoia < 2) audit(AUDIT_PARANOID); # AFM vmatrix["AFM"] = make_array(); vmatrix["AFM"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["AFM"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9"); # AM vmatrix["AM"] = make_array(); vmatrix["AM"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["AM"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9"); # APM vmatrix["APM"] = make_array(); vmatrix["APM"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["APM"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.0.0-11.3.0HF10","10.1.0-10.2.4"); # ASM vmatrix["ASM"] = make_array(); vmatrix["ASM"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["ASM"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.0.0-11.3.0HF10","10.1.0-10.2.4"); # AVR vmatrix["AVR"] = make_array(); vmatrix["AVR"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["AVR"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.0.0-11.3.0HF10"); # GTM vmatrix["GTM"] = make_array(); vmatrix["GTM"]["affected" ] = make_list("11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["GTM"]["unaffected"] = make_list("11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.2.1","10.1.0-10.2.4"); # LC vmatrix["LC"] = make_array(); vmatrix["LC"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["LC"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.0.0-11.3.0HF10","10.1.0-10.2.4"); # LTM vmatrix["LTM"] = make_array(); vmatrix["LTM"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["LTM"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.0.0-11.3.0HF10","10.1.0-10.2.4"); # PEM vmatrix["PEM"] = make_array(); vmatrix["PEM"]["affected" ] = make_list("12.0.0-12.1.1","11.6.0HF4-11.6.1","11.5.3-11.5.4","11.5.0HF7","11.4.0HF10"); vmatrix["PEM"]["unaffected"] = make_list("13.0.0-13.1.0","12.1.2-12.1.3","11.6.1HF2-11.6.2","11.6.0-11.6.0HF3","11.5.4HF3-11.5.5","11.5.1-11.5.2","11.5.0-11.5.0HF6","11.4.1-11.4.1HF11","11.4.0-11.4.0HF9","11.0.0-11.3.0HF10"); # PSM vmatrix["PSM"] = make_array(); vmatrix["PSM"]["affected" ] = make_list("11.4.0HF10"); vmatrix["PSM"]["unaffected"] = make_list("11.4.1","11.0.0-11.4.0HF9","10.0.0-10.2.4"); if (bigip_is_affected(vmatrix:vmatrix, sol:sol)) { if (report_verbosity > 0) security_note(port:0, extra:bigip_report_get()); else security_note(0); exit(0); } else { tested = bigip_get_tested_modules(); audit_extra = "For BIG-IP module(s) " + tested + ","; if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version); else audit(AUDIT_HOST_NOT, "running any of the affected modules"); }NASL family Misc. NASL id NTP_4_2_8P3.NASL description The version of the remote NTP server is 3.x or 4.x prior to 4.2.8p3. It is, therefore, affected by the following vulnerability : - ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet. (CVE-2015-1798) last seen 2020-06-01 modified 2020-06-02 plugin id 121310 published 2019-01-22 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121310 title Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p3 Denial Of Service Vulnerability NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2215.NASL description According to the versions of the ntp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.(CVE-2015-7973) - ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.(CVE-2015-5146) - Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.(CVE-2018-7183) - ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the last seen 2020-05-08 modified 2019-11-08 plugin id 130677 published 2019-11-08 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130677 title EulerOS 2.0 SP5 : ntp (EulerOS-SA-2019-2215) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201509-01.NASL description The remote host is affected by the vulnerability described in GLSA-201509-01 (NTP: Multiple vulnerablities) Multiple vulnerabilities have been discovered in NTP. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly execute arbitrary code with the privileges of the process, or cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 86132 published 2015-09-25 reporter This script is Copyright (C) 2015-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/86132 title GLSA-201509-01 : NTP: Multiple vulnerablities NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1210.NASL description According to the versions of the ntp packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the last seen 2020-03-19 modified 2020-03-13 plugin id 134499 published 2020-03-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134499 title EulerOS Virtualization for ARM 64 3.0.2.0 : ntp (EulerOS-SA-2020-1210) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1457.NASL description According to the versions of the ntp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - NTP through 4.2.8p12 has a NULL Pointer Dereference.(CVE-2019-8936) - ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the last seen 2020-04-30 modified 2020-04-16 plugin id 135619 published 2020-04-16 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135619 title EulerOS Virtualization 3.0.2.2 : ntp (EulerOS-SA-2020-1457) NASL family Fedora Local Security Checks NASL id FEDORA_2015-77BFBC1BCD.NASL description Security fix for CVE-2015-7704, CVE-2015-5300, CVE-2015-7692, CVE-2015-7871, CVE-2015-7702, CVE-2015-7691, CVE-2015-7852, CVE-2015-7701 ---- Security fix for CVE-2015-5146, CVE-2015-5194, CVE-2015-5219, CVE-2015-5195, CVE-2015-5196 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-03-04 plugin id 89288 published 2016-03-04 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/89288 title Fedora 21 : ntp-4.2.6p5-34.fc21 (2015-77bfbc1bcd) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-335.NASL description Several security issues where found in ntp : CVE-2015-5146 A flaw was found in the way ntpd processed certain remote configuration packets. An attacker could use a specially crafted package to cause ntpd to crash if : - ntpd enabled remote configuration - The attacker had the knowledge of the configuration password - The attacker had access to a computer entrusted to perform remote configuration Note that remote configuration is disabled by default in NTP. CVE-2015-5194 It was found that ntpd could crash due to an uninitialized variable when processing malformed logconfig configuration commands. CVE-2015-5195 It was found that ntpd exits with a segmentation fault when a statistics type that was not enabled during compilation (e.g. timingstats) is referenced by the statistics or filegen configuration command CVE-2015-5219 It was discovered that sntp program would hang in an infinite loop when a crafted NTP packet was received, related to the conversion of the precision value in the packet to double. CVE-2015-5300 It was found that ntpd did not correctly implement the -g option: Normally, ntpd exits with a message to the system log if the offset exceeds the panic threshold, which is 1000 s by default. This option allows the time to be set to any value without restriction; however, this can happen only once. If the threshold is exceeded after that, ntpd will exit with a message to the system log. This option can be used with the -q and -x options. ntpd could actually step the clock multiple times by more than the panic threshold if its clock discipline doesn last seen 2020-03-17 modified 2015-10-29 plugin id 86640 published 2015-10-29 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/86640 title Debian DLA-335-1 : ntp security update NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2015-188-03.NASL description New ntp packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix a security issue. last seen 2020-06-01 modified 2020-06-02 plugin id 84590 published 2015-07-08 reporter This script is Copyright (C) 2015-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/84590 title Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : ntp (SSA:2015-188-03) NASL family Fedora Local Security Checks NASL id FEDORA_2015-14213.NASL description Security fix for CVE-2015-5146, CVE-2015-5194, CVE-2015-5219, CVE-2015-5195, CVE-2015-5196 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2015-09-21 plugin id 86027 published 2015-09-21 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/86027 title Fedora 23 : ntp-4.2.6p5-33.fc23 (2015-14213) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-2783-1.NASL description Aleksis Kauppinen discovered that NTP incorrectly handled certain remote config packets. In a non-default configuration, a remote authenticated attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service. (CVE-2015-5146) Miroslav Lichvar discovered that NTP incorrectly handled logconfig directives. In a non-default configuration, a remote authenticated attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service. (CVE-2015-5194) Miroslav Lichvar discovered that NTP incorrectly handled certain statistics types. In a non-default configuration, a remote authenticated attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service. (CVE-2015-5195) Miroslav Lichvar discovered that NTP incorrectly handled certain file paths. In a non-default configuration, a remote authenticated attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service, or overwrite certain files. (CVE-2015-5196, CVE-2015-7703) Miroslav Lichvar discovered that NTP incorrectly handled certain packets. A remote attacker could possibly use this issue to cause NTP to hang, resulting in a denial of service. (CVE-2015-5219) Aanchal Malhotra, Isaac E. Cohen, and Sharon Goldberg discovered that NTP incorrectly handled restarting after hitting a panic threshold. A remote attacker could possibly use this issue to alter the system time on clients. (CVE-2015-5300) It was discovered that NTP incorrectly handled autokey data packets. A remote attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-7691, CVE-2015-7692, CVE-2015-7702) It was discovered that NTP incorrectly handled memory when processing certain autokey messages. A remote attacker could possibly use this issue to cause NTP to consume memory, resulting in a denial of service. (CVE-2015-7701) Aanchal Malhotra, Isaac E. Cohen, and Sharon Goldberg discovered that NTP incorrectly handled rate limiting. A remote attacker could possibly use this issue to cause clients to stop updating their clock. (CVE-2015-7704, CVE-2015-7705) Yves Younan discovered that NTP incorrectly handled logfile and keyfile directives. In a non-default configuration, a remote authenticated attacker could possibly use this issue to cause NTP to enter a loop, resulting in a denial of service. (CVE-2015-7850) Yves Younan and Aleksander Nikolich discovered that NTP incorrectly handled ascii conversion. A remote attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-7852) Yves Younan discovered that NTP incorrectly handled reference clock memory. A malicious refclock could possibly use this issue to cause NTP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-7853) John D last seen 2020-06-01 modified 2020-06-02 plugin id 86630 published 2015-10-28 reporter Ubuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/86630 title Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : ntp vulnerabilities (USN-2783-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2637.NASL description According to the versions of the ntp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.(CVE-2015-7973) - NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.(CVE-2016-2517) - ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.(CVE-2015-5146) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-18 plugin id 132172 published 2019-12-18 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/132172 title EulerOS 2.0 SP3 : ntp (EulerOS-SA-2019-2637) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2015-593.NASL description As discussed upstream, a flaw was found in the way ntpd processed certain remote configuration packets. Note that remote configuration is disabled by default in NTP. (CVE-2015-5146) It was found that the :config command can be used to set the pidfile and driftfile paths without any restrictions. A remote attacker could use this flaw to overwrite a file on the file system with a file containing the pid of the ntpd process (immediately) or the current estimated drift of the system clock (in hourly intervals). (CVE-2015-7703) It was found that ntpd could crash due to an uninitialized variable when processing malformed logconfig configuration commands. (CVE-2015-5194) It was found that ntpd exits with a segmentation fault when a statistics type that was not enabled during compilation (e.g. timingstats) is referenced by the statistics or filegen configuration command. (CVE-2015-5195) It was discovered that sntp would hang in an infinite loop when a crafted NTP packet was received, related to the conversion of the precision value in the packet to double. (CVE-2015-5219) A flaw was found in the way the ntp-keygen utility generated MD5 symmetric keys on big-endian systems. An attacker could possibly use this flaw to guess generated MD5 keys, which could then be used to spoof an NTP client or server. (CVE-2015-3405) last seen 2020-06-01 modified 2020-06-02 plugin id 85751 published 2015-09-03 reporter This script is Copyright (C) 2015-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/85751 title Amazon Linux AMI : ntp (ALAS-2015-593) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2446.NASL description According to the versions of the ntp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.(CVE-2016-2517) - NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.(CVE-2015-7973) - ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.(CVE-2015-5146) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-04 plugin id 131600 published 2019-12-04 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131600 title EulerOS 2.0 SP2 : ntp (EulerOS-SA-2019-2446) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3388.NASL description Several vulnerabilities were discovered in the Network Time Protocol daemon and utility programs : - CVE-2015-5146 A flaw was found in the way ntpd processed certain remote configuration packets. An attacker could use a specially crafted package to cause ntpd to crash if : - ntpd enabled remote configuration - The attacker had the knowledge of the configuration password - The attacker had access to a computer entrusted to perform remote configuration Note that remote configuration is disabled by default in NTP. - CVE-2015-5194 It was found that ntpd could crash due to an uninitialized variable when processing malformed logconfig configuration commands. - CVE-2015-5195 It was found that ntpd exits with a segmentation fault when a statistics type that was not enabled during compilation (e.g. timingstats) is referenced by the statistics or filegen configuration command. - CVE-2015-5219 It was discovered that sntp program would hang in an infinite loop when a crafted NTP packet was received, related to the conversion of the precision value in the packet to double. - CVE-2015-5300 It was found that ntpd did not correctly implement the -g option : Normally, ntpd exits with a message to the system log if the offset exceeds the panic threshold, which is 1000 s by default. This option allows the time to be set to any value without restriction; however, this can happen only once. If the threshold is exceeded after that, ntpd will exit with a message to the system log. This option can be used with the -q and -x options. ntpd could actually step the clock multiple times by more than the panic threshold if its clock discipline doesn last seen 2020-06-01 modified 2020-06-02 plugin id 86682 published 2015-11-02 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/86682 title Debian DSA-3388-1 : ntp - security update
References
- https://security.gentoo.org/glsa/201509-01
- https://bugzilla.redhat.com/show_bug.cgi?id=1238136
- http://www.securitytracker.com/id/1034168
- http://www.securityfocus.com/bid/75589
- http://www.debian.org/security/2015/dsa-3388
- http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html
- http://bugs.ntp.org/show_bug.cgi?id=2853
- https://security.netapp.com/advisory/ntap-20180731-0003/