Cisco IOS/IOS XE NTP input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco IOS and IOS XE. Affected by this vulnerability is an unknown functionality of the component NTP Handler. The manipulation results in input validation. This vulnerability is cataloged as CVE-2013-5472. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco IOS and IOS XE (Router Operating System). Affected is an unknown functionality of the component NTP Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

The NTP implementation in Cisco IOS 12.0 through 12.4 and 15.0 through 15.1, and IOS XE 2.1 through 3.3, does not properly handle encapsulation of multicast NTP packets within MSDP SA messages, which allows remote attackers to cause a denial of service (device reload) by leveraging an MSDP peer relationship, aka Bug ID CSCuc81226.

The weakness was shared 09/25/2013 as cisco-sa-20130925-ntp as confirmed advisory (Website). The advisory is available at tools.cisco.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2013-5472 since 08/22/2013. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 70321 (Cisco IOS XE Software Multicast Network Time Protocol Denial of Service Vulnerability (cisco-sa-20130925-ntp)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43320 (Cisco IOS Software Multicast Network Time Protocol Denial of Service Vulnerability (cisco-sa-20130925-ntp)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (70321), SecurityFocus (BID 62640†), OSVDB (97742†) and Vulnerability Center (SBV-41627†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Cisco IOS up to 15.1
  • Cisco IOS XE up to 3.3S.2

Productinfo

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Vendor

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70321
Nessus Name: Cisco IOS XE Software Multicast Network Time Protocol Denial of Service Vulnerability (cisco-sa-20130925-ntp)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

08/22/2013 🔍
09/25/2013 +33 days 🔍
09/25/2013 +0 days 🔍
09/25/2013 +0 days 🔍
09/26/2013 +1 days 🔍
09/27/2013 +1 days 🔍
09/27/2013 +0 days 🔍
09/29/2013 +2 days 🔍
10/07/2013 +8 days 🔍
12/24/2024 +4096 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20130925-ntp
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5472 (🔍)
GCVE (CVE): GCVE-0-2013-5472
GCVE (VulDB): GCVE-100-10494

IAVM: 🔍

SecurityFocus: 62640
OSVDB: 97742
Vulnerability Center: 41627 - [cisco-sa-20130925-ntp] Cisco IOS 12.0-12.4, 15.0-15.1 IOS XE 2.1-3.3 Remote DoS via MSDP SA Messages - CVE-2013-5472, High

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/26/2013 19:27
Updated: 12/24/2024 20:49
Changes: 09/26/2013 19:27 (45), 05/12/2017 08:38 (26), 05/26/2021 00:30 (4), 05/26/2021 00:43 (1), 12/24/2024 20:49 (16)
Complete: 🔍
Committer:
Cache ID: 216:513:103

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