7.4
HIGH
CVE-2018-0241
Cisco IOS XR UDP Broadcast Forwarding Denial of Service Vulnerability
Description

A vulnerability in the UDP broadcast forwarding function of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of UDP broadcast packets that are forwarded to an IPv4 helper address. An attacker could exploit this vulnerability by sending multiple UDP broadcast packets to the affected device. An exploit could allow the attacker to cause a buffer leak on the affected device, eventually resulting in a DoS condition requiring manual intervention to recover. This vulnerability affects all Cisco IOS XR platforms running 6.3.1, 6.2.3, or earlier releases of Cisco IOS XR Software when at least one IPv4 helper address is configured on an interface of the device. Cisco Bug IDs: CSCvi35625.

INFO

Published Date :

April 19, 2018, 8:29 p.m.

Last Modified :

Oct. 9, 2019, 11:31 p.m.

Remotely Exploitable :

No

Impact Score :

4.0

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2018-0241 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_xr
2 Cisco carrier_routing_system
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-2018-0241.

URL Resource
http://www.securityfocus.com/bid/103929 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040710 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxr 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).

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

The following list is the news that have been mention CVE-2018-0241 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-0241 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-399
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-399 CWE-119 NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    May. 24, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxr No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxr Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/bid/103929 No Types Assigned http://www.securityfocus.com/bid/103929 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.securitytracker.com/id/1040710 No Types Assigned http://www.securitytracker.com/id/1040710 Third Party Advisory, VDB Entry
    Added CWE CWE-399
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xr:4.0.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:4.1.3.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:4.2.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:4.3.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:4.4.3.ce:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:5.0.3.ce:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:5.1.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:5.2.5.ce:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:5.3.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:5.4.3.ce:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:6.0.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:6.1.4.base:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xr:6.2.3.base:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 22, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/103929 [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 21, 2018

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1040710 [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-2018-0241 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-2018-0241 weaknesses.

Exploit Prediction

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

0.09 }} -0.01%

score

0.38768

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability