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ID

VAR-201905-0535


CVE

CVE-2019-1812


TITLE

Cisco NX-OS Vulnerabilities related to digital signature verification in software

Trust: 0.8

sources: JVNDB: JVNDB-2019-004593

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 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. Cisco NX-OS The software contains a vulnerability related to digital signature verification.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Successfully exploiting these issues may allow an attacker to perform unauthorized actions. This may lead to other attacks. This issue is being tracked by Cisco Bug IDs CSCvj14093, CSCvj14106, CSCvj14182, CSCvk53125, CSCvk53227, CSCvk53256

Trust: 1.98

sources: NVD: CVE-2019-1812 // JVNDB: JVNDB-2019-004593 // BID: 108425 // VULHUB: VHN-150434

AFFECTED PRODUCTS

vendor:ciscomodel:nx-osscope:gteversion:6.0\(2\)

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vendor:ciscomodel:nx-osscope:ltversion:7.0\(3\)i7\(5\)

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vendor:ciscomodel:nx-osscope:ltversion:9.2\(2\)

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vendor:ciscomodel:nx-osscope:gteversion:7.0\(3\)

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vendor:ciscomodel:nx-osscope:gteversion:9.2

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vendor:ciscomodel:nx-osscope:ltversion:7.0\(3\)f3\(5\)

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vendor:ciscomodel:nx-osscope: - version: -

Trust: 0.8

vendor:ciscomodel:nx-osscope:eqversion:9.2

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vendor:ciscomodel:nx-os 7.0 i7scope: - version: -

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vendor:ciscomodel:nx-os 7.0 i6scope: - version: -

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vendor:ciscomodel:nx-os 7.0 i5scope: - version: -

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vendor:ciscomodel:nx-os 7.0 i4scope: - version: -

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vendor:ciscomodel:nx-os 7.0 f3scope: - version: -

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vendor:ciscomodel:nexus r-series switching platformscope:eqversion:95000

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vendor:ciscomodel:nexus series switches in standalone nx-os modescope:eqversion:90000

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vendor:ciscomodel:nexus platform switchesscope:eqversion:36000

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vendor:ciscomodel:nexus series switchesscope:eqversion:30000

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vendor:ciscomodel:nx-osscope:neversion:9.2(2)

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vendor:ciscomodel:nx-os 7.0 i7scope:neversion: -

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vendor:ciscomodel:nx-os 7.0 f3scope:neversion: -

Trust: 0.3

sources: BID: 108425 // JVNDB: JVNDB-2019-004593 // NVD: CVE-2019-1812

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2019-1812
value: MEDIUM

Trust: 1.0

ykramarz@cisco.com: CVE-2019-1812
value: MEDIUM

Trust: 1.0

NVD: CVE-2019-1812
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-201905-689
value: MEDIUM

Trust: 0.6

VULHUB: VHN-150434
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2019-1812
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-150434
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

ykramarz@cisco.com: CVE-2019-1812
baseSeverity: MEDIUM
baseScore: 6.7
vectorString: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.8
impactScore: 5.9
version: 3.0

Trust: 1.8

nvd@nist.gov: CVE-2019-1812
baseSeverity: MEDIUM
baseScore: 6.7
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.8
impactScore: 5.9
version: 3.1

Trust: 1.0

sources: VULHUB: VHN-150434 // JVNDB: JVNDB-2019-004593 // CNNVD: CNNVD-201905-689 // NVD: CVE-2019-1812 // NVD: CVE-2019-1812

PROBLEMTYPE DATA

problemtype:CWE-347

Trust: 1.9

sources: VULHUB: VHN-150434 // JVNDB: JVNDB-2019-004593 // NVD: CVE-2019-1812

THREAT TYPE

local

Trust: 0.9

sources: BID: 108425 // CNNVD: CNNVD-201905-689

TYPE

data forgery

Trust: 0.6

sources: CNNVD: CNNVD-201905-689

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2019-004593

PATCH
title:cisco-sa-20190515-nxos-sisv2url:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2
Trust: 0.8
title:Cisco NX-OS Software Repair measures for data forgery problem vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=92813
Trust: 0.6
sources:
            
            
            JVNDB: JVNDB-2019-004593 // 
            
            
            
            CNNVD: CNNVD-201905-689

EXTERNAL IDS
db:NVDid:CVE-2019-1812
Trust: 2.8
db:BIDid:108425
Trust: 2.0
db:JVNDBid:JVNDB-2019-004593
Trust: 0.8
db:AUSCERTid:ESB-2019.1756.4
Trust: 0.6
db:AUSCERTid:ESB-2019.1756.3
Trust: 0.6
db:CNNVDid:CNNVD-201905-689
Trust: 0.6
db:VULHUBid:VHN-150434
Trust: 0.1
sources:
            
            
            VULHUB: VHN-150434 // 
            
            
            
            BID: 108425 // 
            
            
            
            JVNDB: JVNDB-2019-004593 // 
            
            
            
            CNNVD: CNNVD-201905-689 // 
            
            
            
            NVD: CVE-2019-1812

REFERENCES
url:http://www.securityfocus.com/bid/108425
Trust: 2.3
url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-sisv2
Trust: 2.0
url:https://nvd.nist.gov/vuln/detail/cve-2019-1812
Trust: 1.4
url:http://www.cisco.com/
Trust: 0.9
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-1812
Trust: 0.8
url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-ssh-info
Trust: 0.6
url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-rpm-injec
Trust: 0.6
url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-pyth-escal
Trust: 0.6
url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-psvb
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-nxapi-xss
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-linecardinj-1769
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1791
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1790
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmd-inject-1784
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1783
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1778
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1776
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1770
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1735
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cmdinj-1774-1775
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-cli-bypass
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-overflow-inj
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-bash-bypass
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190515-nxos-file-write
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url:https://www.auscert.org.au/bulletins/esb-2019.1756.3/
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url:https://www.auscert.org.au/bulletins/81106
Trust: 0.6
sources:
            
            
            VULHUB: VHN-150434 // 
            
            
            
            BID: 108425 // 
            
            
            
            JVNDB: JVNDB-2019-004593 // 
            
            
            
            CNNVD: CNNVD-201905-689 // 
            
            
            
            NVD: CVE-2019-1812

CREDITS
Cisco
Trust: 0.9
sources:
            
            
            BID: 108425 // 
            
            
            
            CNNVD: CNNVD-201905-689

SOURCES
db:VULHUBid:VHN-150434
db:BIDid:108425
db:JVNDBid:JVNDB-2019-004593
db:CNNVDid:CNNVD-201905-689
db:NVDid:CVE-2019-1812

LAST UPDATE DATE
2024-08-14T13:55:27.119000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-150434date:2019-05-23T00:00:00
db:BIDid:108425date:2019-05-15T00:00:00
db:JVNDBid:JVNDB-2019-004593date:2019-06-05T00:00:00
db:CNNVDid:CNNVD-201905-689date:2019-05-27T00:00:00
db:NVDid:CVE-2019-1812date:2023-03-24T18:15:20.860

SOURCES RELEASE DATE
db:VULHUBid:VHN-150434date:2019-05-15T00:00:00
db:BIDid:108425date:2019-05-15T00:00:00
db:JVNDBid:JVNDB-2019-004593date:2019-06-05T00:00:00
db:CNNVDid:CNNVD-201905-689date:2019-05-15T00:00:00
db:NVDid:CVE-2019-1812date:2019-05-15T23:29:01.277