5.0
MEDIUM
CVE-2013-5211
NTP Denial of Service Traffic Amplification Vulnerability
Description

The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploited in the wild in December 2013.

INFO

Published Date :

Jan. 2, 2014, 2:59 p.m.

Last Modified :

Nov. 1, 2023, 12:51 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Public PoC/Exploit Available at Github

CVE-2013-5211 has a 17 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2013-5211 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Oracle linux
1 Opensuse opensuse
1 Ntp ntp
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2013-5211.

URL Resource
http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.asc Third Party Advisory
http://bugs.ntp.org/show_bug.cgi?id=1532 Issue Tracking
http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04 Third Party Advisory US Government Resource
http://lists.ntp.org/pipermail/pool/2011-December/005616.html Broken Link
http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html Third Party Advisory
http://marc.info/?l=bugtraq&m=138971294629419&w=2 Mailing List
http://marc.info/?l=bugtraq&m=144182594518755&w=2 Mailing List Third Party Advisory
http://openwall.com/lists/oss-security/2013/12/30/6 Mailing List
http://openwall.com/lists/oss-security/2013/12/30/7 Mailing List
http://secunia.com/advisories/59288 Not Applicable
http://secunia.com/advisories/59726 Not Applicable
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861 Broken Link
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892 Broken Link
http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p26.tar.gz Patch
http://www.kb.cert.org/vuls/id/348126 Third Party Advisory US Government Resource
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.securityfocus.com/bid/64692 Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1030433 Third Party Advisory VDB Entry
http://www.us-cert.gov/ncas/alerts/TA14-013A Third Party Advisory US Government Resource
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 Third Party Advisory
https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory Broken Link

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Exploit and check CVE-2013-5211

C#

Updated: 3 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : Oct. 16, 2024, 9:45 a.m. This repo has been linked 1 different CVEs too.

check and exploit for NTP vuln CVE-2013-5211

Updated: 3 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : Oct. 16, 2024, 9:35 a.m. This repo has been linked 1 different CVEs too.

This script allows users to scan networks for detecting Open Relay on SNMP, UDP Amplification on DNS and NTP.

Python

Updated: 3 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : Jan. 27, 2024, 11:05 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 1 year, 6 months ago
0 stars 0 fork 0 watcher
Born at : May 4, 2023, 12:28 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 10 months, 3 weeks ago
3 stars 0 fork 0 watcher
Born at : May 3, 2023, 5:20 p.m. This repo has been linked 1 different CVEs too.

None

Shell

Updated: 2 months ago
3 stars 2 fork 2 watcher
Born at : March 23, 2023, 4:32 a.m. This repo has been linked 435 different CVEs too.

None

Shell

Updated: 1 year, 7 months ago
2 stars 0 fork 0 watcher
Born at : Nov. 16, 2022, 9:38 a.m. This repo has been linked 256 different CVEs too.

None

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 30, 2022, 6:29 p.m. This repo has been linked 253 different CVEs too.

None

Shell

Updated: 3 months ago
1 stars 1 fork 1 watcher
Born at : Aug. 25, 2022, 12:16 a.m. This repo has been linked 250 different CVEs too.

None

Shell Dockerfile TSQL JavaScript

Updated: 4 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : July 1, 2020, 10:34 a.m. This repo has been linked 1 different CVEs too.

None

Python Shell

Updated: 6 months, 3 weeks ago
4 stars 1 fork 1 watcher
Born at : May 31, 2020, 1:01 a.m. This repo has been linked 1 different CVEs too.

PoC for distributed NTP reflection DoS (CVE-2013-5211)

ntp ntp-amplification ntp-doser ddos dos amplification network-time-protocol spoofed-packets packet-crafting

Makefile C++

Updated: 2 months, 4 weeks ago
10 stars 12 fork 12 watcher
Born at : Sept. 24, 2019, 8:02 p.m. This repo has been linked 1 different CVEs too.

None

JavaScript Smarty

Updated: 5 years, 11 months ago
0 stars 0 fork 0 watcher
Born at : Nov. 3, 2017, 4:18 p.m. This repo has been linked 1 different CVEs too.

None

Ruby

Updated: 7 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 21, 2017, 6:40 p.m. This repo has been linked 1 different CVEs too.

This module is an example profile to manage RHEL system configurations that comply with various regulations such as STIG, PCI, HIPAA, and more

Puppet Ruby

Updated: 1 year, 9 months ago
3 stars 2 fork 2 watcher
Born at : Jan. 5, 2016, 12:24 a.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2013-5211 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2013-5211 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Nov. 01, 2023

    Action Type Old Value New Value
    Changed Reference Type http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.asc No Types Assigned http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.asc Third Party Advisory
    Changed Reference Type http://bugs.ntp.org/show_bug.cgi?id=1532 No Types Assigned http://bugs.ntp.org/show_bug.cgi?id=1532 Issue Tracking
    Changed Reference Type http://lists.ntp.org/pipermail/pool/2011-December/005616.html No Types Assigned http://lists.ntp.org/pipermail/pool/2011-December/005616.html Broken Link
    Changed Reference Type http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html Third Party Advisory
    Changed Reference Type http://marc.info/?l=bugtraq&m=138971294629419&w=2 No Types Assigned http://marc.info/?l=bugtraq&m=138971294629419&w=2 Mailing List
    Changed Reference Type http://marc.info/?l=bugtraq&m=144182594518755&w=2 No Types Assigned http://marc.info/?l=bugtraq&m=144182594518755&w=2 Mailing List, Third Party Advisory
    Changed Reference Type http://openwall.com/lists/oss-security/2013/12/30/6 No Types Assigned http://openwall.com/lists/oss-security/2013/12/30/6 Mailing List
    Changed Reference Type http://openwall.com/lists/oss-security/2013/12/30/7 No Types Assigned http://openwall.com/lists/oss-security/2013/12/30/7 Mailing List
    Changed Reference Type http://secunia.com/advisories/59288 No Types Assigned http://secunia.com/advisories/59288 Not Applicable
    Changed Reference Type http://secunia.com/advisories/59726 No Types Assigned http://secunia.com/advisories/59726 Not Applicable
    Changed Reference Type http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html No Types Assigned http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/64692 No Types Assigned http://www.securityfocus.com/bid/64692 Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.securitytracker.com/id/1030433 No Types Assigned http://www.securitytracker.com/id/1030433 Third Party Advisory, VDB Entry
    Changed Reference Type http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861 No Types Assigned http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861 Broken Link
    Changed Reference Type http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892 No Types Assigned http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892 Broken Link
    Changed Reference Type https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 No Types Assigned https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 Third Party Advisory
    Changed Reference Type https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory No Types Assigned https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory Broken Link
    Changed CPE Configuration OR *cpe:2.3:a:ntp:ntp:4.2.7:*:*:*:*:*:*:* OR *cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* versions up to (excluding) 4.2.7 *cpe:2.3:a:ntp:ntp:4.2.7:-:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p0:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p1:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p10:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p11:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p12:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p13:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p14:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p15:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p16:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p17:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p18:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p19:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p2:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p20:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p21:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p22:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p23:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p24:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p25:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p3:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p4:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p5:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p6:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p7:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p8:*:*:*:*:*:* *cpe:2.3:a:ntp:ntp:4.2.7:p9:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:* *cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Oct. 30, 2018

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:novell:opensuse:11.4:*:*:*:*:*:*:* OR *cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 09, 2017

    Action Type Old Value New Value
    Added Reference https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 22, 2016

    Action Type Old Value New Value
    Added Reference https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/64692 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
  • CVE Modified by [email protected]

    Aug. 23, 2016

    Action Type Old Value New Value
    Added Reference http://marc.info/?l=bugtraq&m=144182594518755&w=2
  • Modified Analysis by [email protected]

    Nov. 20, 2015

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:ntp:ntp:4.2.7:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:novell:opensuse:11.4:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:ntp:ntp:4.2.7:*:*:*:*:*:*:*
    Changed Reference Type http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04 No Types Assigned http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04 Advisory, US Govt Resource
    Changed Reference Type http://www.kb.cert.org/vuls/id/348126 US Govt Resource http://www.kb.cert.org/vuls/id/348126 Advisory, US Govt Resource
    Changed Reference Type http://www.us-cert.gov/ncas/alerts/TA14-013A US Govt Resource http://www.us-cert.gov/ncas/alerts/TA14-013A Advisory, US Govt Resource
  • CVE Modified by [email protected]

    Dec. 03, 2014

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html
  • Initial Analysis by [email protected]

    Jan. 02, 2014

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2013-5211 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2013-5211 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

96.43 }} -0.27%

score

0.99599

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability