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ID

VAR-202112-0710


CVE

CVE-2021-20138


TITLE

Gryphon Tower  In the router  OS  Command injection vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-016124

DESCRIPTION

An unauthenticated command injection vulnerability exists in multiple parameters in the Gryphon Tower router’s web interface at /cgi-bin/luci/rc. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the web interface. (DoS) It may be in a state. Gryphon Tower is a wireless router from Gryphon

Trust: 2.25

sources: NVD: CVE-2021-20138 // JVNDB: JVNDB-2021-016124 // CNVD: CNVD-2021-100342 // VULMON: CVE-2021-20138

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-100342

AFFECTED PRODUCTS

vendor:gryphonmodel:towerscope: - version: -

Trust: 1.4

vendor:gryphonconnectmodel:gryphon towerscope:lteversion:04.0004.12

Trust: 1.0

vendor:gryphonmodel:towerscope:eqversion: -

Trust: 0.8

vendor:gryphonmodel:towerscope:eqversion:gryphon tower firmware

Trust: 0.8

sources: CNVD: CNVD-2021-100342 // JVNDB: JVNDB-2021-016124 // NVD: CVE-2021-20138

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-20138
value: HIGH

Trust: 1.0

NVD: CVE-2021-20138
value: HIGH

Trust: 0.8

CNVD: CNVD-2021-100342
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202112-735
value: HIGH

Trust: 0.6

VULMON: CVE-2021-20138
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2021-20138
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2021-100342
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-20138
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2021-20138
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2021-100342 // VULMON: CVE-2021-20138 // JVNDB: JVNDB-2021-016124 // CNNVD: CNNVD-202112-735 // NVD: CVE-2021-20138

PROBLEMTYPE DATA

problemtype:CWE-78

Trust: 1.0

problemtype:OS Command injection (CWE-78) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-016124 // NVD: CVE-2021-20138

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202112-735

TYPE

operating system commend injection

Trust: 0.6

sources: CNNVD: CNNVD-202112-735

PATCH

title:Top Pageurl:https://gryphonconnect.com/

Trust: 0.8

title:Patch for Gryphon Tower command injection vulnerability (CNVD-2021-100342)url:https://www.cnvd.org.cn/patchInfo/show/306236

Trust: 0.6

title:Gryphon Tower Fixes for operating system command injection vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=174229

Trust: 0.6

title: - url:https://github.com/SYRTI/POC_to_review

Trust: 0.1

sources: CNVD: CNVD-2021-100342 // VULMON: CVE-2021-20138 // JVNDB: JVNDB-2021-016124 // CNNVD: CNNVD-202112-735

EXTERNAL IDS

db:NVDid:CVE-2021-20138

Trust: 3.9

db:TENABLEid:TRA-2021-51

Trust: 3.1

db:JVNDBid:JVNDB-2021-016124

Trust: 0.8

db:CNVDid:CNVD-2021-100342

Trust: 0.6

db:CNNVDid:CNNVD-202112-735

Trust: 0.6

db:VULMONid:CVE-2021-20138

Trust: 0.1

sources: CNVD: CNVD-2021-100342 // VULMON: CVE-2021-20138 // JVNDB: JVNDB-2021-016124 // CNNVD: CNNVD-202112-735 // NVD: CVE-2021-20138

REFERENCES

url:https://www.tenable.com/security/research/tra-2021-51

Trust: 3.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-20138

Trust: 0.8

url:https://cwe.mitre.org/data/definitions/78.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://github.com/syrti/poc_to_review

Trust: 0.1

sources: CNVD: CNVD-2021-100342 // VULMON: CVE-2021-20138 // JVNDB: JVNDB-2021-016124 // CNNVD: CNNVD-202112-735 // NVD: CVE-2021-20138

SOURCES

db:CNVDid:CNVD-2021-100342
db:VULMONid:CVE-2021-20138
db:JVNDBid:JVNDB-2021-016124
db:CNNVDid:CNNVD-202112-735
db:NVDid:CVE-2021-20138

LAST UPDATE DATE

2024-08-14T13:53:44.024000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-100342date:2021-12-16T00:00:00
db:VULMONid:CVE-2021-20138date:2021-12-13T00:00:00
db:JVNDBid:JVNDB-2021-016124date:2022-12-07T02:50:00
db:CNNVDid:CNNVD-202112-735date:2021-12-14T00:00:00
db:NVDid:CVE-2021-20138date:2021-12-13T17:49:14.993

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-100342date:2021-12-16T00:00:00
db:VULMONid:CVE-2021-20138date:2021-12-09T00:00:00
db:JVNDBid:JVNDB-2021-016124date:2022-12-07T00:00:00
db:CNNVDid:CNNVD-202112-735date:2021-12-09T00:00:00
db:NVDid:CVE-2021-20138date:2021-12-09T16:15:07.803