PT-2020-2872 · Cisco · Cisco Ios Xe+3

Published 2020-06-03 · Updated 2021-10-18 · CVE-2020-3228

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco IOS Software (affected versions not specified) Cisco IOS XE Software (affected versions not specified) Cisco NX-OS Software (affected versions not specified)

Description A vulnerability in the Security Group Tag Exchange Protocol (SXP) could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because crafted SXP packets are mishandled. An attacker could exploit this vulnerability by sending specifically crafted SXP packets to the affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2020-03029

CVE-2020-3228

Affected Products

Cisco Ios

Cisco Ios Xe

Cisco Nx-Os

Cisco Nexus

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2020-3228 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sxp-68TEVzR · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-03029 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sxp-68TEVzR · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3228 · Vendor Advisory
• https://t.me/cvenotify/4149 · Telegram Post