FKIE_CVE-2021-0269
Vulnerability from fkie_nvd - Published: 2021-04-22 20:15 - Updated: 2024-11-21 05:42
Severity ?
Summary
The improper handling of client-side parameters in J-Web of Juniper Networks Junos OS allows an attacker to perform a number of different malicious actions against a target device when a user is authenticated to J-Web. An attacker may be able to supersede existing parameters, including hardcoded parameters within the HTTP/S session, access and exploit variables, bypass web application firewall rules or input validation mechanisms, and otherwise alter and modify J-Web's normal behavior. An attacker may be able to transition victims to malicious web services, or exfiltrate sensitive information from otherwise secure web forms. This issue affects: Juniper Networks Junos OS: All versions prior to 17.4R3-S3; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11160 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11160 | Vendor Advisory |
Impacted products
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The improper handling of client-side parameters in J-Web of Juniper Networks Junos OS allows an attacker to perform a number of different malicious actions against a target device when a user is authenticated to J-Web. An attacker may be able to supersede existing parameters, including hardcoded parameters within the HTTP/S session, access and exploit variables, bypass web application firewall rules or input validation mechanisms, and otherwise alter and modify J-Web\u0027s normal behavior. An attacker may be able to transition victims to malicious web services, or exfiltrate sensitive information from otherwise secure web forms. This issue affects: Juniper Networks Junos OS: All versions prior to 17.4R3-S3; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2."
},
{
"lang": "es",
"value": "El manejo inapropiado de los par\u00e1metros client-side en J-Web de Juniper Networks Junos OS, permite a un atacante llevar a cabo una serie de diferentes acciones maliciosas contra un dispositivo objetivo cuando un usuario est\u00e1 autenticado en J-Web.\u0026#xa0;Un atacante puede ser capaz de reemplazar los par\u00e1metros existentes, incluyendo los par\u00e1metros embebidos dentro de la sesi\u00f3n HTTP/S, las variables de acceso y explotaci\u00f3n, la omisi\u00f3n de las reglas de firewall de aplicaciones web o los mecanismos de comprobaci\u00f3n de entrada, y de otro modo alterar y modificar el comportamiento normal de J-Web.\u0026#xa0;Un atacante puede ser capaz de transferir a las v\u00edctimas a servicios web maliciosos o exfiltrar informaci\u00f3n confidencial de formularios web que de otro modo ser\u00edan seguros.\u0026#xa0;Este problema afecta a: Juniper Networks Junos OS: todas las versiones anteriores a 17.4R3-S3;\u0026#xa0;versiones 18.1 anteriores a 18.1R3-S12;\u0026#xa0;versiones 18.2 anteriores a 18.2R3-S6;\u0026#xa0;versiones 18.3 anteriores a 18.3R3-S4;\u0026#xa0;versiones 18.4 anteriores a 18.4R3-S6;\u0026#xa0;versiones 19.1 anteriores a 19.1R3-S4;\u0026#xa0;versiones 19.2 anteriores a 19.2R3-S1;\u0026#xa0;versiones 19.3 anteriores a 19.3R3-S1;\u0026#xa0;versiones 19.4 anteriores a 19.4R2-S2, 19.4R3;\u0026#xa0;versiones 20.1 anteriores a 20.1R2;\u0026#xa0;versiones 20.2 anteriores a 20.2R2"
}
],
"id": "CVE-2021-0269",
"lastModified": "2024-11-21T05:42:21.877",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "HIGH",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 4.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "sirt@juniper.net",
"type": "Secondary"
}
]
},
"published": "2021-04-22T20:15:09.980",
"references": [
{
"source": "sirt@juniper.net",
"tags": [
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],
"url": "https://kb.juniper.net/JSA11160"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://kb.juniper.net/JSA11160"
}
],
"sourceIdentifier": "sirt@juniper.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-233"
}
],
"source": "sirt@juniper.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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