CVE-2023-28769

The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities	Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:*

History

21 Nov 2024, 07:55

Type	Values Removed	Values Added
References	~~() https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities - Vendor Advisory~~	() https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities - Vendor Advisory

Information

Published : 2023-04-27 09:15

Updated : 2024-11-21 07:55

NVD link : CVE-2023-28769

Mitre link : CVE-2023-28769

CVE.ORG link : CVE-2023-28769

JSON object : View

Products Affected

zyxel

dx5401-b0_firmware
dx5401-b0

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2023-28769", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@zyxel.com.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2023-04-27T09:15:09.057", "references": [{"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities", "tags": ["Vendor Advisory"], "source": "security@zyxel.com.tw"}, {"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@zyxel.com.tw", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "The buffer overflow vulnerability in the library \u201clibclinkc.so\u201d of the web server \u201czhttpd\u201d in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device."}], "lastModified": "2024-11-21T07:55:58.413", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C91B77C-EC30-4C88-AAEB-330B7A3E0470", "versionEndExcluding": "5.17\\(abyo.1\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B293E564-2C48-442A-A415-34383DF3ADBA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@zyxel.com.tw"}

9.8 /10