8.1
HIGH
CVE-2018-15372
"Cisco IOS XE MACsec EAP-TLS Authentication Bypass"
Description

A vulnerability in the MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic through a Layer 3 interface of an affected device. The vulnerability is due to a logic error in the affected software. An attacker could exploit this vulnerability by connecting to and passing traffic through a Layer 3 interface of an affected device, if the interface is configured for MACsec MKA using EAP-TLS and is running in access-session closed mode. A successful exploit could allow the attacker to bypass 802.1x network access controls and gain access to the network.

INFO

Published Date :

Oct. 5, 2018, 2:29 p.m.

Last Modified :

Oct. 9, 2019, 11:35 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2018-15372 has a 1 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-2018-15372 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 Cisco ios_xe
: Total Affected Vendor : 1 | Products : 1
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-2018-15372.

URL Resource
http://www.securityfocus.com/bid/105416 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec Vendor Advisory

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).

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lucabrasi83/vscan

Vulscano Cisco VA Scan & Report

Dockerfile Go

Updated: 10 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 20, 2018, 1:57 p.m. This repo has been linked 5 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-2018-15372 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-15372 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
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Cisco Systems, Inc. CWE-284
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-284 CWE-287 NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    Jan. 10, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:L/Au:N/C:P/I:P/A:N)
    Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type http://www.securityfocus.com/bid/105416 No Types Assigned http://www.securityfocus.com/bid/105416 Third Party Advisory, VDB Entry
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec Vendor Advisory
    Added CWE CWE-284
    Added CPE Configuration OR *cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.9.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 07, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/105416 [No Types Assigned]
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-2018-15372 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-2018-15372 weaknesses.

CAPEC-19: Embedding Scripts within Scripts Embedding Scripts within Scripts CAPEC-441: Malicious Logic Insertion Malicious Logic Insertion CAPEC-478: Modification of Windows Service Configuration Modification of Windows Service Configuration CAPEC-479: Malicious Root Certificate Malicious Root Certificate CAPEC-502: Intent Spoof Intent Spoof CAPEC-503: WebView Exposure WebView Exposure CAPEC-536: Data Injected During Configuration Data Injected During Configuration CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment Incomplete Data Deletion in a Multi-Tenant Environment CAPEC-550: Install New Service Install New Service CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-552: Install Rootkit Install Rootkit CAPEC-556: Replace File Extension Handlers Replace File Extension Handlers CAPEC-558: Replace Trusted Executable Replace Trusted Executable CAPEC-562: Modify Shared File Modify Shared File CAPEC-563: Add Malicious File to Shared Webroot Add Malicious File to Shared Webroot CAPEC-564: Run Software at Logon Run Software at Logon CAPEC-578: Disable Security Software Disable Security Software
Exploit Prediction

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

0.07 }} 0.00%

score

0.26842

percentile

CVSS30 - Vulnerability Scoring System
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