CVE-2019-1812 : A vulnerability in the Image Signature Verification feature of Cisco NX-OS Softw

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 image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device.

Published 2019-05-15 23:29:01

Updated 2023-03-24 18:15:21

Source Cisco Systems, Inc.

View at NVD, CVE.org

Products affected by CVE-2019-1812

Cisco » Nx-os
Versions before (<) 7.0\(3\)i7\(5\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 9432pq » Version: N/A
When used together with: Cisco » 9536pq » Version: N/A
When used together with: Cisco » 9636pq » Version: N/A
When used together with: Cisco » 9736pq » Version: N/A
When used together with: Cisco » N9k-x9432c-s » Version: N/A
When used together with: Cisco » N9k-x9464px » Version: N/A
When used together with: Cisco » N9k-x9464tx2 » Version: N/A
When used together with: Cisco » N9k-x9564px » Version: N/A
When used together with: Cisco » N9k-x9564tx » Version: N/A
When used together with: Cisco » N9k-x9636c-r » Version: N/A
When used together with: Cisco » N9k-x9636c-rx » Version: N/A
When used together with: Cisco » N9k-x97160yc-ex » Version: N/A
When used together with: Cisco » N9k-x9732c-ex » Version: N/A
When used together with: Cisco » N9k-x9732c-fx » Version: N/A
When used together with: Cisco » N9k-x9736c-ex » Version: N/A
When used together with: Cisco » N9k-x9736c-fx » Version: N/A
When used together with: Cisco » N9k-x9788tc-fx » Version: N/A
When used together with: Cisco » Nexus 92160yc-x » Version: N/A
When used together with: Cisco » Nexus 92300yc » Version: N/A
When used together with: Cisco » Nexus 93108tc-ex » Version: N/A
When used together with: Cisco » Nexus 93108tc-fx » Version: N/A
When used together with: Cisco » Nexus 93120tx » Version: N/A
When used together with: Cisco » Nexus 9316d-gx » Version: N/A
When used together with: Cisco » Nexus 93180lc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-ex » Version: N/A
When used together with: Cisco » Nexus 93180yc-fx » Version: N/A
When used together with: Cisco » Nexus 93216tc-fx2 » Version: N/A
When used together with: Cisco » Nexus 93240yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9332c » Version: N/A
When used together with: Cisco » Nexus 93360yc-fx2 » Version: N/A
When used together with: Cisco » Nexus 9336c-fx2 » Version: N/A
When used together with: Cisco » Nexus 9348gc-fxp » Version: N/A
When used together with: Cisco » Nexus 93600cd-gx » Version: N/A
When used together with: Cisco » Nexus 9364c » Version: N/A
When used together with: Cisco » Nexus 9500 Supervisor A » Version: N/A
When used together with: Cisco » Nexus 9500 Supervisor A+ » Version: N/A
When used together with: Cisco » Nexus 9500 Supervisor B » Version: N/A
When used together with: Cisco » Nexus 9500 Supervisor B+ » Version: N/A
When used together with: Cisco » Nexus 9504 » Version: N/A
When used together with: Cisco » Nexus 9508 » Version: N/A
When used together with: Cisco » Nexus 9516 » Version: N/A
When used together with: Cisco » X9636q-r » Version: N/A
Cisco » Nx-os
Versions from including (>=) 6.0\(2\) and before (<) 7.0\(3\)i7\(5\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 3048 » Version: N/A
When used together with: Cisco » Nexus 31108pc-v » Version: N/A
When used together with: Cisco » Nexus 31108tc-v » Version: N/A
When used together with: Cisco » Nexus 31128pq » Version: N/A
When used together with: Cisco » Nexus 3132c-z » Version: N/A
When used together with: Cisco » Nexus 3132q-v » Version: N/A
When used together with: Cisco » Nexus 3132q-x/3132q-xl » Version: N/A
When used together with: Cisco » Nexus 3164q » Version: N/A
When used together with: Cisco » Nexus 3172pq/pq-xl » Version: N/A
When used together with: Cisco » Nexus 3172tq-xl » Version: N/A
When used together with: Cisco » Nexus 3232c » Version: N/A
When used together with: Cisco » Nexus 3264c-e » Version: N/A
When used together with: Cisco » Nexus 3264q » Version: N/A
When used together with: Cisco » Nexus 3408-s » Version: N/A
When used together with: Cisco » Nexus 34180yc » Version: N/A
When used together with: Cisco » Nexus 3432d-s » Version: N/A
When used together with: Cisco » Nexus 3464c » Version: N/A
When used together with: Cisco » Nexus 3524-x/xl » Version: N/A
When used together with: Cisco » Nexus 3548-x/xl » Version: N/A
When used together with: Cisco » Nexus 36180yc-r » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.0\(3\) and before (<) 7.0\(3\)f3\(5\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » N9k-c9504-fm-r » Version: N/A
When used together with: Cisco » N9k-c9508-fm-r » Version: N/A
When used together with: Cisco » Nexus 36180yc-r » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A
Cisco » Nx-os
Versions from including (>=) 9.2 and before (<) 9.2\(2\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 3048 » Version: N/A
When used together with: Cisco » Nexus 31108pc-v » Version: N/A
When used together with: Cisco » Nexus 31108tc-v » Version: N/A
When used together with: Cisco » Nexus 31128pq » Version: N/A
When used together with: Cisco » Nexus 3132c-z » Version: N/A
When used together with: Cisco » Nexus 3132q-v » Version: N/A
When used together with: Cisco » Nexus 3132q-x/3132q-xl » Version: N/A
When used together with: Cisco » Nexus 3164q » Version: N/A
When used together with: Cisco » Nexus 3172pq/pq-xl » Version: N/A
When used together with: Cisco » Nexus 3172tq-xl » Version: N/A
When used together with: Cisco » Nexus 3232c » Version: N/A
When used together with: Cisco » Nexus 3264c-e » Version: N/A
When used together with: Cisco » Nexus 3264q » Version: N/A
When used together with: Cisco » Nexus 3408-s » Version: N/A
When used together with: Cisco » Nexus 34180yc » Version: N/A
When used together with: Cisco » Nexus 3432d-s » Version: N/A
When used together with: Cisco » Nexus 3464c » Version: N/A
When used together with: Cisco » Nexus 3524-x/xl » Version: N/A
When used together with: Cisco » Nexus 3548-x/xl » Version: N/A
When used together with: Cisco » Nexus 36180yc-r » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-1812

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-1812

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.2	HIGH	AV:L/AC:L/Au:N/C:C/I:C/A:C	3.9	10.0	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
6.7	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.8	5.9	Cisco Systems, Inc.
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
6.7	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-1812

CWE-347 Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2019-1812

http://www.securityfocus.com/bid/108425

Cisco NX-OS CLI Command Software Multiple Security Vulnerbailities
Broken Link;Third Party Advisory;VDB Entry

CVEs referencing this url
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2

Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities
Vendor Advisory

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2019-1812

Products affected by CVE-2019-1812

Exploit prediction scoring system (EPSS) score for CVE-2019-1812

CVSS scores for CVE-2019-1812

CWE ids for CVE-2019-1812

References for CVE-2019-1812