CVE-2020-3118

KEV
Published: Feb 05, 2020 Last Modified: Ott 28, 2025 EU-VD ID: EUVD-2020-24389 Aliases: GSD-2020-3118
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 8,3
Source: [email protected]
Access Vector: adjacent_network
Access Complexity: low
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability is due to improper validation of string input from certain fields in Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0029
Percentile
0,5th
Updated

EPSS Score Trend (Last 91 Days)

134

Use of Externally-Controlled Format String

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Availability
Potential Impacts:
Read Memory Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: C, C++, Not Language-Specific, Perl
Likelihood of Exploit: High
View CWE Details
787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version Range Affected
From 7.0.0 (inclusive)
To 7.0.2 (exclusive)
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version Range Affected
From 6.6.0 (inclusive)
To 6.6.12 (exclusive)
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version 6.6.25
cpe:2.3:o:cisco:ios_xr:6.6.25:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version 7.0.1
cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version 6.5.3
cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version 5.2.5
cpe:2.3:o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xr by Cisco

Product Information
Vendor Cisco
Product Ios Xr
Version 6.4.2
cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020…
http://packetstormsecurity.com/files/156203/Cisco-Discovery…
http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote…
https://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…
http://packetstormsecurity.com/files/156203/Cisco-Discovery…
http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote…
https://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…