CVE-2024-34195

TOTOLINK AC1200 Wireless Router A3002R Firmware V1.1.1-B20200824 is vulnerable to Buffer Overflow. In the boa server program's CGI handling function formWlEncrypt, there is a lack of length restriction on the wlan_ssid field. This oversight leads to potential buffer overflow under specific circumstances. For instance, by invoking the formWlanRedirect function with specific parameters to alter wlan_idx's value and subsequently invoking the formWlEncrypt function, an attacker can trigger buffer overflow, enabling arbitrary command execution or denial of service attacks.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

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://gist.github.com/Swind1er/84161b607d06d060fba5adcdd92bceb4	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a3002r_firmware:1.1.1-b20200824:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a3002r:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-08-28 20:15

Updated : 2024-08-30 15:59

NVD link : CVE-2024-34195

Mitre link : CVE-2024-34195

CVE.ORG link : CVE-2024-34195

JSON object : View

Products Affected

totolink

a3002r
a3002r_firmware

CWE

CWE-787

Out-of-bounds Write

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2024-34195", "cveTags": [], "metrics": {"cvssMetricV31": [{"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}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/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": 2.8}]}, "published": "2024-08-28T20:15:07.580", "references": [{"url": "https://gist.github.com/Swind1er/84161b607d06d060fba5adcdd92bceb4", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "TOTOLINK AC1200 Wireless Router A3002R Firmware V1.1.1-B20200824 is vulnerable to Buffer Overflow. In the boa server program's CGI handling function formWlEncrypt, there is a lack of length restriction on the wlan_ssid field. This oversight leads to potential buffer overflow under specific circumstances. For instance, by invoking the formWlanRedirect function with specific parameters to alter wlan_idx's value and subsequently invoking the formWlEncrypt function, an attacker can trigger buffer overflow, enabling arbitrary command execution or denial of service attacks."}, {"lang": "es", "value": "El firmware V1.1.1-B20200824 del enrutador inal\u00e1mbrico TOTOLINK AC1200 A3002R es vulnerable a un desbordamiento de b\u00fafer. En la funci\u00f3n de manejo de CGI formWlEncrypt del programa del servidor boa, no hay ninguna restricci\u00f3n de longitud en el campo wlan_ssid. Este descuido conduce a un posible desbordamiento de b\u00fafer en circunstancias espec\u00edficas. Por ejemplo, al invocar la funci\u00f3n formWlanRedirect con par\u00e1metros espec\u00edficos para alterar el valor de wlan_idx y, posteriormente, invocar la funci\u00f3n formWlEncrypt, un atacante puede provocar un desbordamiento de b\u00fafer, lo que permite la ejecuci\u00f3n arbitraria de comandos o ataques de denegaci\u00f3n de servicio."}], "lastModified": "2024-08-30T15:59:08.873", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:totolink:a3002r_firmware:1.1.1-b20200824:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90D879E5-4A5A-4CB9-BE87-BAC3847B445C"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:totolink:a3002r:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2CBBBC48-8918-4D59-8059-285404AE7716"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}