PT-2019-2211 · Cisco · Cisco Nx-Os+1

Published 2019-05-15 · Updated 2023-03-24 · CVE-2019-1808

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:L/AC:L/Au:S/C:C/I:C/A:C

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

Description A vulnerability in the Image Signature Verification feature could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The issue is due to improper verification of digital signatures for patch images. An attacker could exploit this by loading an unsigned software patch on an affected device, potentially allowing them to boot a malicious software patch image.

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

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

BDU:2019-01982

CVE-2019-1808

Affected Products

Cisco Nx-Os

Cisco Nexus

References · 6

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-spsv · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-1808 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1808 · Security Note
• https://bdu.fstec.ru/vul/2019-01982 · Security Note
• http://securityfocus.com/bid/108367 · Note
• https://t.me/cvenotify/46779 · Telegram Post