CVEvulnerability

CVE-2019-1809

6.7 MEDIUM Published 2019-05-15 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-05-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
6.4 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-347

Description

A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

Affected configurations

• cisco nx-os (>= 7.3 < 8.1\(1a\)) • cisco nx-os (>= 8.2 < 8.3\(1\)) • cisco nx-os (>= 7.2 < 7.3\(3\)d1\(1\)) • cisco nx-os (>= 8.0 < 8.2\(3\)) • cisco nx-os (>= 3.1 < 3.2\(3k\))

Related

Weakness · CWE (1)

  • CWE-347 Improper Verification of Cryptographic Signature weakness

References