Cisco IOS PTP Subsystem Packet resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco IOS. This issue affects some unknown processing of the component PTP Subsystem. The manipulation as part of Packet leads to resource management. This vulnerability is referenced as CVE-2018-0473. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS (Router Operating System) (version now known). It has been rated as problematic. This issue affects some unknown processing of the component PTP Subsystem. The manipulation as part of a Packet leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

A vulnerability in the Precision Time Protocol (PTP) subsystem of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of the Precision Time Protocol. The vulnerability is due to insufficient processing of PTP packets. An attacker could exploit this vulnerability by sending a custom PTP packet to, or through, an affected device. A successful exploit could allow the attacker to cause a DoS condition for the PTP subsystem, resulting in time synchronization issues across the network.

The bug was discovered 09/26/2018. The weakness was published 10/05/2018 with Cisco (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2018-0473 since 11/26/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 117953 (Cisco IOS Software PTP DoS Vulnerability (cisco-sa-20180926-ptp)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316320 (Cisco IOS Software Precision Time Protocol Denial of Service Vulnerability(cisco-sa-20180926-ptp)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (117953) and SecurityFocus (BID 105427†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 117953
Nessus Name: Cisco IOS Software PTP DoS Vulnerability (cisco-sa-20180926-ptp)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/26/2017 🔍
09/26/2018 +303 days 🔍
09/26/2018 +0 days 🔍
09/26/2018 +0 days 🔍
10/05/2018 +8 days 🔍
10/05/2018 +0 days 🔍
10/05/2018 +0 days 🔍
10/06/2018 +1 days 🔍
05/22/2023 +1689 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: securityfocus.com⛔
Organization: Cisco
Status: Not defined

CVE: CVE-2018-0473 (🔍)
GCVE (CVE): GCVE-0-2018-0473
GCVE (VulDB): GCVE-100-124865

OVAL: 🔍

SecurityFocus: 105427 - Cisco IOS Software CVE-2018-0473 Denial of Service Vulnerability
SecurityTracker: 1041737

Entryinfo

Created: 10/06/2018 10:51
Updated: 05/22/2023 13:17
Changes: 10/06/2018 10:51 (70), 03/30/2020 11:41 (5), 05/22/2023 13:17 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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