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ID

VAR-202104-1721


CVE

CVE-2021-27114


TITLE

D-Link DIR-816 A2  Out-of-bounds Vulnerability in Microsoft

Trust: 0.8

sources: JVNDB: JVNDB-2021-005421

DESCRIPTION

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the"'s_ip" and "s_mac" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address. D-Link DIR-816 A2 Is vulnerable to an out-of-bounds write.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. D-Link DIR-816 is a wireless AC750 dual-band router. The handler function of /goform/addassignment in D-Link DIR-816 A2 1.10 B05 has a stack buffer overflow vulnerability. Attackers can use this vulnerability to cause the router to crash through long text input in the s_ip and s_mac fields

Trust: 2.25

sources: NVD: CVE-2021-27114 // JVNDB: JVNDB-2021-005421 // CNVD: CNVD-2021-30001 // VULMON: CVE-2021-27114

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-30001

AFFECTED PRODUCTS

vendor:dlinkmodel:dir-816scope:eqversion:1.10b05

Trust: 1.0

vendor:d linkmodel:dir-816 a2scope:eqversion: -

Trust: 0.8

vendor:d linkmodel:dir-816 a2scope:eqversion:dir-816 a2 firmware 1.10 b05

Trust: 0.8

vendor:d linkmodel:dir-816 a2 b05scope:eqversion:1.10

Trust: 0.6

sources: CNVD: CNVD-2021-30001 // JVNDB: JVNDB-2021-005421 // NVD: CVE-2021-27114

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-27114
value: CRITICAL

Trust: 1.0

NVD: CVE-2021-27114
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2021-30001
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202104-1092
value: CRITICAL

Trust: 0.6

VULMON: CVE-2021-27114
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2021-27114
severity: HIGH
baseScore: 7.5
vectorString: AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2021-30001
severity: HIGH
baseScore: 7.5
vectorString: AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-27114
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2021-27114
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: 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-2021-30001 // VULMON: CVE-2021-27114 // JVNDB: JVNDB-2021-005421 // CNNVD: CNNVD-202104-1092 // NVD: CVE-2021-27114

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

problemtype:Out-of-bounds writing (CWE-787) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-005421 // NVD: CVE-2021-27114

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202104-1092

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202104-1092

PATCH

title:Security Bulletinurl:https://www.dlink.com/en/security-bulletin/

Trust: 0.8

sources: JVNDB: JVNDB-2021-005421

EXTERNAL IDS

db:NVDid:CVE-2021-27114

Trust: 3.9

db:JVNDBid:JVNDB-2021-005421

Trust: 0.8

db:CNVDid:CNVD-2021-30001

Trust: 0.6

db:CNNVDid:CNNVD-202104-1092

Trust: 0.6

db:VULMONid:CVE-2021-27114

Trust: 0.1

sources: CNVD: CNVD-2021-30001 // VULMON: CVE-2021-27114 // JVNDB: JVNDB-2021-005421 // CNNVD: CNNVD-202104-1092 // NVD: CVE-2021-27114

REFERENCES

url:https://github.com/gd008/vuln/blob/main/dir-816_stackoverflow.md

Trust: 2.5

url:https://nvd.nist.gov/vuln/detail/cve-2021-27114

Trust: 2.0

url:https://www.dlink.com/en/security-bulletin/

Trust: 1.7

url:https://cwe.mitre.org/data/definitions/787.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2021-30001 // VULMON: CVE-2021-27114 // JVNDB: JVNDB-2021-005421 // CNNVD: CNNVD-202104-1092 // NVD: CVE-2021-27114

SOURCES

db:CNVDid:CNVD-2021-30001
db:VULMONid:CVE-2021-27114
db:JVNDBid:JVNDB-2021-005421
db:CNNVDid:CNNVD-202104-1092
db:NVDid:CVE-2021-27114

LAST UPDATE DATE

2024-11-23T22:40:40.405000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-30001date:2021-04-22T00:00:00
db:VULMONid:CVE-2021-27114date:2021-04-20T00:00:00
db:JVNDBid:JVNDB-2021-005421date:2021-12-14T07:19:00
db:CNNVDid:CNNVD-202104-1092date:2021-04-22T00:00:00
db:NVDid:CVE-2021-27114date:2024-11-21T05:57:22.040

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-30001date:2021-04-22T00:00:00
db:VULMONid:CVE-2021-27114date:2021-04-14T00:00:00
db:JVNDBid:JVNDB-2021-005421date:2021-12-14T00:00:00
db:CNNVDid:CNNVD-202104-1092date:2021-04-14T00:00:00
db:NVDid:CVE-2021-27114date:2021-04-14T14:15:13.647