ID

VAR-201801-1645


CVE

CVE-2018-5721


TITLE

ASUS Router buffer error vulnerability

Trust: 1.4

sources: JVNDB: JVNDB-2018-001442 // CNNVD: CNNVD-201801-596

DESCRIPTION

Stack-based buffer overflow in the ej_update_variables function in router/httpd/web.c on ASUS routers (when using software from https://github.com/RMerl/asuswrt-merlin) allows web authenticated attackers to execute code via a request that updates a setting. In ej_update_variables, the length of the variable action_script is not checked, as long as it includes a "_wan_if" substring. ASUS The router contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. ASUSrouters is a wireless router product from ASUS. A buffer overflow vulnerability exists in the \342\200\230ej_update_variables\342\200\231 function of the router/httpd/web.c file in the ASUS router. An attacker could exploit the vulnerability to execute code by sending a request to update settings

Trust: 2.25

sources: NVD: CVE-2018-5721 // JVNDB: JVNDB-2018-001442 // CNVD: CNVD-2018-04188 // VULMON: CVE-2018-5721

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2018-04188

AFFECTED PRODUCTS

vendor:asuswrt merlinmodel:asuswrt-merlinscope:lteversion:382.1_2

Trust: 1.0

vendor:asuswrt merlinmodel:asuswrt-merlinscope: - version: -

Trust: 0.8

vendor:asusmodel:routerscope: - version: -

Trust: 0.6

vendor:asuswrt merlinmodel:asuswrt-merlinscope:eqversion:382.1_2

Trust: 0.6

sources: CNVD: CNVD-2018-04188 // JVNDB: JVNDB-2018-001442 // CNNVD: CNNVD-201801-596 // NVD: CVE-2018-5721

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2018-5721
value: HIGH

Trust: 1.0

NVD: CVE-2018-5721
value: HIGH

Trust: 0.8

CNVD: CNVD-2018-04188
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-201801-596
value: HIGH

Trust: 0.6

VULMON: CVE-2018-5721
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2018-5721
severity: MEDIUM
baseScore: 6.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2018-04188
severity: MEDIUM
baseScore: 6.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2018-5721
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2018-5721
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2018-04188 // VULMON: CVE-2018-5721 // JVNDB: JVNDB-2018-001442 // CNNVD: CNNVD-201801-596 // NVD: CVE-2018-5721

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

problemtype:CWE-119

Trust: 0.8

sources: JVNDB: JVNDB-2018-001442 // NVD: CVE-2018-5721

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201801-596

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-201801-596

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-001442

PATCH

title:Top Pageurl:https://asuswrt.lostrealm.ca/

Trust: 0.8

title:some_nday_bugsurl:https://github.com/w0lfzhang/some_nday_bugs

Trust: 0.1

title:router-configurl:https://github.com/lesinh97/router-config

Trust: 0.1

sources: VULMON: CVE-2018-5721 // JVNDB: JVNDB-2018-001442

EXTERNAL IDS

db:NVDid:CVE-2018-5721

Trust: 3.1

db:JVNDBid:JVNDB-2018-001442

Trust: 0.8

db:CNVDid:CNVD-2018-04188

Trust: 0.6

db:CNNVDid:CNNVD-201801-596

Trust: 0.6

db:VULMONid:CVE-2018-5721

Trust: 0.1

sources: CNVD: CNVD-2018-04188 // VULMON: CVE-2018-5721 // JVNDB: JVNDB-2018-001442 // CNNVD: CNNVD-201801-596 // NVD: CVE-2018-5721

REFERENCES

url:http://www.w0lfzhang.com/2018/01/17/asus-router-stack-overflow-in-http-server/

Trust: 2.5

url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-5721

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2018-5721

Trust: 0.8

url:http-server/

Trust: 0.6

url:http://www.w0lfzhang.com/2018/01/17/asus-router-stack-overflow-in-

Trust: 0.6

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

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://github.com/w0lfzhang/some_nday_bugs

Trust: 0.1

sources: CNVD: CNVD-2018-04188 // VULMON: CVE-2018-5721 // JVNDB: JVNDB-2018-001442 // CNNVD: CNNVD-201801-596 // NVD: CVE-2018-5721

SOURCES

db:CNVDid:CNVD-2018-04188
db:VULMONid:CVE-2018-5721
db:JVNDBid:JVNDB-2018-001442
db:CNNVDid:CNNVD-201801-596
db:NVDid:CVE-2018-5721

LAST UPDATE DATE

2024-11-23T22:12:41.319000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2018-04188date:2018-03-02T00:00:00
db:VULMONid:CVE-2018-5721date:2020-08-24T00:00:00
db:JVNDBid:JVNDB-2018-001442date:2018-02-16T00:00:00
db:CNNVDid:CNNVD-201801-596date:2020-08-25T00:00:00
db:NVDid:CVE-2018-5721date:2024-11-21T04:09:14.773

SOURCES RELEASE DATE

db:CNVDid:CNVD-2018-04188date:2018-03-02T00:00:00
db:VULMONid:CVE-2018-5721date:2018-01-17T00:00:00
db:JVNDBid:JVNDB-2018-001442date:2018-02-16T00:00:00
db:CNNVDid:CNNVD-201801-596date:2018-01-18T00:00:00
db:NVDid:CVE-2018-5721date:2018-01-17T06:29:00.277