PT-2020-3063 · Cisco · Cisco Small Business Smart/Managed Switches

Published 2020-07-02 · Updated 2020-07-09 · CVE-2020-3297

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Small Business Smart and Managed Switches (affected versions not specified)

Description The issue is related to errors in authentication within the web interface for managing the firmware of Cisco Small Business Smart and Managed Switches. This could allow a remote attacker to bypass authentication protections and gain unauthorized access to the management interface, potentially obtaining administrator privileges on the device. The vulnerability is due to the use of weak entropy generation for session identifier values, which an attacker could exploit through brute force to determine a current session identifier and reuse it to take over an ongoing session.

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

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2020-03354

CVE-2020-3297

Affected Products

Cisco Small Business Smart/Managed Switches

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-3297 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbswitch-session-JZAS5jnY · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-03354 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3297 · Vendor Advisory
• https://t.me/cvenotify/4793 · Telegram Post