ID

VAR-202004-0743


CVE

CVE-2019-20763


TITLE

NETGEAR R7800 Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2019-015298

DESCRIPTION

NETGEAR R7800 devices before 1.0.2.52 are affected by a stack-based buffer overflow by an authenticated user. NETGEAR R7800 The device is vulnerable to out-of-bounds writes.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR R7800 is a wireless router of NETGEAR. The vulnerability stems from the fact that when a network system or product performs an operation on memory, the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow

Trust: 2.16

sources: NVD: CVE-2019-20763 // JVNDB: JVNDB-2019-015298 // CNVD: CNVD-2020-23425

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2020-23425

AFFECTED PRODUCTS

vendor:netgearmodel:r7800scope:ltversion:1.0.2.52

Trust: 1.6

vendor:netgearmodel:r7800scope:eqversion:1.0.2.52

Trust: 0.8

sources: CNVD: CNVD-2020-23425 // JVNDB: JVNDB-2019-015298 // NVD: CVE-2019-20763

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2019-20763
value: MEDIUM

Trust: 1.0

cve@mitre.org: CVE-2019-20763
value: MEDIUM

Trust: 1.0

NVD: JVNDB-2019-015298
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2020-23425
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202004-1374
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2019-20763
severity: MEDIUM
baseScore: 5.2
vectorString: AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 5.1
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

NVD: JVNDB-2019-015298
severity: MEDIUM
baseScore: 5.2
vectorString: AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector: ADJACENT NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

CNVD: CNVD-2020-23425
severity: MEDIUM
baseScore: 5.2
vectorString: AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 5.1
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2019-20763
baseSeverity: MEDIUM
baseScore: 6.8
vectorString: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.9
impactScore: 5.9
version: 3.1

Trust: 1.0

cve@mitre.org: CVE-2019-20763
baseSeverity: MEDIUM
baseScore: 6.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.9
impactScore: 5.9
version: 3.0

Trust: 1.0

NVD: JVNDB-2019-015298
baseSeverity: MEDIUM
baseScore: 6.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2020-23425 // JVNDB: JVNDB-2019-015298 // CNNVD: CNNVD-202004-1374 // NVD: CVE-2019-20763 // NVD: CVE-2019-20763

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-015298 // NVD: CVE-2019-20763

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1374

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1374

CONFIGURATIONS

[
  {
    "CVE_data_version": "4.0",
    "nodes": [
      {
        "operator": "OR",
        "cpe_match": [
          {
            "vulnerable": true,
            "cpe22Uri": "cpe:/o:netgear:r7800_firmware"
          }
        ]
      }
    ]
  }
]

sources: JVNDB: JVNDB-2019-015298

PATCH

title:Security Advisory for Post-Authentication Stack Overflow on R7800, PSV-2018-0145url:https://kb.netgear.com/000060636/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-R7800-PSV-2018-0145

Trust: 0.8

title:Patch for NETGEAR R7800 buffer overflow vulnerability (CNVD-2020-23425)url:https://www.cnvd.org.cn/patchInfo/show/214447

Trust: 0.6

title:NETGEAR R7800 Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=115184

Trust: 0.6

sources: CNVD: CNVD-2020-23425 // JVNDB: JVNDB-2019-015298 // CNNVD: CNNVD-202004-1374

EXTERNAL IDS

db:NVDid:CVE-2019-20763

Trust: 3.0

db:JVNDBid:JVNDB-2019-015298

Trust: 0.8

db:CNVDid:CNVD-2020-23425

Trust: 0.6

db:CNNVDid:CNNVD-202004-1374

Trust: 0.6

sources: CNVD: CNVD-2020-23425 // JVNDB: JVNDB-2019-015298 // CNNVD: CNNVD-202004-1374 // NVD: CVE-2019-20763

REFERENCES

url:https://nvd.nist.gov/vuln/detail/cve-2019-20763

Trust: 2.0

url:https://kb.netgear.com/000060636/security-advisory-for-post-authentication-stack-overflow-on-r7800-psv-2018-0145

Trust: 1.6

url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20763

Trust: 0.8

sources: CNVD: CNVD-2020-23425 // JVNDB: JVNDB-2019-015298 // CNNVD: CNNVD-202004-1374 // NVD: CVE-2019-20763

SOURCES

db:CNVDid:CNVD-2020-23425
db:JVNDBid:JVNDB-2019-015298
db:CNNVDid:CNNVD-202004-1374
db:NVDid:CVE-2019-20763

LAST UPDATE DATE

2024-11-23T21:59:21.310000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2020-23425date:2020-04-18T00:00:00
db:JVNDBid:JVNDB-2019-015298date:2020-05-11T00:00:00
db:CNNVDid:CNNVD-202004-1374date:2020-04-26T00:00:00
db:NVDid:CVE-2019-20763date:2024-11-21T04:39:18.157

SOURCES RELEASE DATE

db:CNVDid:CNVD-2020-23425date:2020-04-17T00:00:00
db:JVNDBid:JVNDB-2019-015298date:2020-05-11T00:00:00
db:CNNVDid:CNNVD-202004-1374date:2020-04-16T00:00:00
db:NVDid:CVE-2019-20763date:2020-04-16T22:15:13.463