PT-2019-1580 · Cisco · Cisco Nexus 9000 Series Switches+1

Published 2019-03-06 · Updated 2019-10-09 · CVE-2019-1585

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Nexus 9000 Series Switches versions prior to 4.0(1h)

Description The issue is related to a misconfiguration in the controller authorization functionality of Cisco NX-OS, which could allow an authenticated, local attacker to escalate privileges. This is due to a misconfiguration of certain sudoers files for the bashroot component. An attacker could exploit this by authenticating with a crafted user id, potentially allowing temporary administrative access to escalate privileges. A successful exploit could result in the attacker gaining elevated privileges on the affected device.

Recommendations For versions prior to 4.0(1h), update to version 4.0(1h) or later to resolve the issue. As a temporary workaround, consider restricting access to the bashroot component and limiting the use of sudoers files to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-16

Related Identifiers

BDU:2019-01111

CVE-2019-1585

Affected Products

Cisco Nx-Os

Cisco Nexus 9000 Series Switches

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-aci-controller-privsec · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-01111 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-1585 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1585 · Vendor Advisory
• http://securityfocus.com/bid/107312 · Note