fkie_cve-2018-5721
Vulnerability from fkie_nvd
Published
2018-01-17 06:29
Modified
2024-11-21 04:09
Severity ?
Summary
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.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | http://www.w0lfzhang.com/2018/01/17/ASUS-router-stack-overflow-in-http-server/ | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.w0lfzhang.com/2018/01/17/ASUS-router-stack-overflow-in-http-server/ | Exploit, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| asuswrt-merlin | asuswrt-merlin | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:asuswrt-merlin:asuswrt-merlin:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3AF80063-9556-4F96-A317-5D808E0C7058",
"versionEndIncluding": "382.1_2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Desbordamiento de b\u00fafer basado en pila en la funci\u00f3n ej_update_variables en outer/httpd/web.c en routers ASUS (cuando emplean software de https://github.com/RMerl/asuswrt-merlin) permite que atacantes autenticados en la web ejecuten c\u00f3digo mediante una petici\u00f3n que actualiza una configuraci\u00f3n. En ej_update_variables, la longitud de la variable action_script no se comprueba, siempre y cuando incluya una subcadena \"_wan_if\"."
}
],
"id": "CVE-2018-5721",
"lastModified": "2024-11-21T04:09:14.773",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": true,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-01-17T06:29:00.277",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "http://www.w0lfzhang.com/2018/01/17/ASUS-router-stack-overflow-in-http-server/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "http://www.w0lfzhang.com/2018/01/17/ASUS-router-stack-overflow-in-http-server/"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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