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ID

VAR-202110-1305


CVE

CVE-2021-34761


TITLE

Cisco Firepower Threat Defense Software  Input verification vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-014180

DESCRIPTION

A vulnerability in Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite or append arbitrary data to system files using root-level privileges. The attacker must have administrative credentials on the device. This vulnerability is due to incomplete validation of user input for a specific CLI command. An attacker could exploit this vulnerability by authenticating to the device with administrative privileges and issuing a CLI command with crafted user parameters. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges

Trust: 1.71

sources: NVD: CVE-2021-34761 // JVNDB: JVNDB-2021-014180 // VULHUB: VHN-395003

AFFECTED PRODUCTS

vendor:ciscomodel:firepower threat defensescope:gteversion:7.0.0

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vendor:ciscomodel:firepower threat defensescope:ltversion:7.0.1

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vendor:ciscomodel:firepower threat defensescope:ltversion:6.7.0.3

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vendor:ciscomodel:firepower threat defensescope:gteversion:6.4.0

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vendor:ciscomodel:firepower threat defensescope:ltversion:6.4.0.13

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vendor:ciscomodel:firepower threat defensescope:gteversion:6.6.0

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vendor:ciscomodel:firepower management center virtual appliancescope:eqversion:6.6.1

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vendor:ciscomodel:sourcefire defense centerscope:eqversion:6.6.1

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vendor:ciscomodel:sourcefire defense centerscope:eqversion:6.2.3

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vendor:ciscomodel:firepower management center virtual appliancescope:eqversion:6.2.3

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vendor:ciscomodel:firepower threat defensescope:ltversion:6.6.5

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vendor:ciscomodel:firepower threat defensescope:gteversion:6.7.0

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vendor:ciscomodel:firepower management center virtual appliancescope:eqversion:7.0.0

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vendor:ciscomodel:sourcefire defense centerscope:eqversion:7.0.0

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vendor:ciscomodel:sourcefire defense centerscope:eqversion:7.1.0

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vendor:ciscomodel:firepower management center virtual appliancescope:eqversion:7.1.0

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vendor:ciscomodel:firepower management center virtual appliancescope:eqversion:6.4.0

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vendor:ciscomodel:sourcefire defense centerscope:eqversion:6.4.0

Trust: 1.0

vendor:ciscomodel:sourcefire defense centerscope:eqversion:6.7.0

Trust: 1.0

vendor:ciscomodel:firepower management center virtual appliancescope:eqversion:6.7.0

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vendor:シスコシステムズmodel:cisco firepower threat defense ソフトウェアscope: - version: -

Trust: 0.8

vendor:シスコシステムズmodel:cisco sourcefire defense centerscope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2021-014180 // NVD: CVE-2021-34761

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-34761
value: MEDIUM

Trust: 1.0

ykramarz@cisco.com: CVE-2021-34761
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-34761
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-202110-1977
value: MEDIUM

Trust: 0.6

VULHUB: VHN-395003
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-34761
severity: MEDIUM
baseScore: 6.6
vectorString: AV:L/AC:L/AU:N/C:N/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 9.2
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-395003
severity: MEDIUM
baseScore: 6.6
vectorString: AV:L/AC:L/AU:N/C:N/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 9.2
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-34761
baseSeverity: MEDIUM
baseScore: 6.0
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.8
impactScore: 5.2
version: 3.1

Trust: 1.0

ykramarz@cisco.com: CVE-2021-34761
baseSeverity: MEDIUM
baseScore: 4.4
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: 0.8
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-34761
baseSeverity: MEDIUM
baseScore: 6.0
vectorString: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-395003 // JVNDB: JVNDB-2021-014180 // CNNVD: CNNVD-202110-1977 // NVD: CVE-2021-34761 // NVD: CVE-2021-34761

PROBLEMTYPE DATA

problemtype:CWE-668

Trust: 1.1

problemtype:CWE-73

Trust: 1.0

problemtype:Inappropriate input confirmation (CWE-20) [NVD evaluation ]

Trust: 0.8

sources: VULHUB: VHN-395003 // JVNDB: JVNDB-2021-014180 // NVD: CVE-2021-34761

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202110-1977

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-202110-1977

PATCH

title:cisco-sa-ftd-file-write-SHVcmQVcurl:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-file-write-SHVcmQVc

Trust: 0.8

title:Cisco Firepower Threat Defense Enter the fix for the verification error vulnerabilityurl:http://123.124.177.30/web/xxk/bdxqById.tag?id=167897

Trust: 0.6

sources: JVNDB: JVNDB-2021-014180 // CNNVD: CNNVD-202110-1977

EXTERNAL IDS

db:NVDid:CVE-2021-34761

Trust: 3.3

db:JVNDBid:JVNDB-2021-014180

Trust: 0.8

db:CS-HELPid:SB2021102910

Trust: 0.6

db:AUSCERTid:ESB-2021.3597

Trust: 0.6

db:CNNVDid:CNNVD-202110-1977

Trust: 0.6

db:VULHUBid:VHN-395003

Trust: 0.1

sources: VULHUB: VHN-395003 // JVNDB: JVNDB-2021-014180 // CNNVD: CNNVD-202110-1977 // NVD: CVE-2021-34761

REFERENCES

url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-ftd-file-write-shvcmqvc

Trust: 2.3

url:https://nvd.nist.gov/vuln/detail/cve-2021-34761

Trust: 1.4

url:https://www.cybersecurity-help.cz/vdb/sb2021102910

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2021.3597

Trust: 0.6

sources: VULHUB: VHN-395003 // JVNDB: JVNDB-2021-014180 // CNNVD: CNNVD-202110-1977 // NVD: CVE-2021-34761

SOURCES

db:VULHUBid:VHN-395003
db:JVNDBid:JVNDB-2021-014180
db:CNNVDid:CNNVD-202110-1977
db:NVDid:CVE-2021-34761

LAST UPDATE DATE

2024-08-14T13:53:52.398000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-395003date:2022-10-27T00:00:00
db:JVNDBid:JVNDB-2021-014180date:2022-10-06T09:14:00
db:CNNVDid:CNNVD-202110-1977date:2022-10-28T00:00:00
db:NVDid:CVE-2021-34761date:2023-11-07T03:36:19.850

SOURCES RELEASE DATE

db:VULHUBid:VHN-395003date:2021-10-27T00:00:00
db:JVNDBid:JVNDB-2021-014180date:2022-10-06T00:00:00
db:CNNVDid:CNNVD-202110-1977date:2021-10-27T00:00:00
db:NVDid:CVE-2021-34761date:2021-10-27T19:15:08.003