PT-2021-1862 · Cisco · Cisco Sd-Wan+1

Joseph Connor · Published 2021-01-20 · Updated 2023-10-06 · CVE-2021-1273

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 SD-WAN products (affected versions not specified)

Description Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device. The issue is related to errors in processing IP packets passing through the IPsec tunnel.

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

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2021-00629

CVE-2021-1273

Affected Products

Cisco Ios Xe

Cisco Sd-Wan

References · 7

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00629 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-1273 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/660751 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1273 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP · Vendor Advisory
• https://t.me/cibsecurity/22450 · Telegram Post