PT-2021-2552 · Cisco · Cisco Ios Xe

Published 2021-03-24 · Updated 2022-09-20 · CVE-2021-1352

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

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

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

Description: The issue is due to insufficient input validation of DECnet traffic received by an affected device, which could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. An attacker could exploit this by sending DECnet traffic to the device, potentially causing it to reload.

Recommendations: For Cisco IOS XE Software, update to a version that includes the fix for this issue, as software updates have been released by Cisco to address the vulnerability. At the moment, there is no information about specific versions that contain a fix for this vulnerability.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-823

Related Identifiers

BDU:2021-01960

CVE-2021-1352

Affected Products

Cisco Ios Xe

References · 6

• https://bdu.fstec.ru/vul/2021-01960 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-decnet-dos-cuPWDkyL · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1352 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-decnet-dos-cuPWDkyL · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/663950 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1352 · Vendor Advisory