FKIE_CVE-2023-44186
Vulnerability from fkie_nvd - Published: 2023-10-11 21:15 - Updated: 2024-11-21 08:25
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An Improper Handling of Exceptional Conditions vulnerability in AS PATH processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a BGP update message with an AS PATH containing a large number of 4-byte ASes, leading to a Denial of Service (DoS). Continued receipt and processing of these BGP updates will create a sustained Denial of Service (DoS) condition.
This issue is hit when the router has Non-Stop Routing (NSR) enabled, has a non-4-byte-AS capable BGP neighbor, receives a BGP update message with a prefix that includes a long AS PATH containing large number of 4-byte ASes, and has to advertise the prefix towards the non-4-byte-AS capable BGP neighbor.
Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.
This issue affects:
Juniper Networks Junos OS:
* All versions prior to 20.4R3-S8;
* 21.1 versions 21.1R1 and later;
* 21.2 versions prior to 21.2R3-S6;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S5;
* 22.1 versions prior to 22.1R3-S4;
* 22.2 versions prior to 22.2R3-S2;
* 22.3 versions prior to 22.3R2-S2, 22.3R3-S1;
* 22.4 versions prior to 22.4R2-S1, 22.4R3.
Juniper Networks Junos OS Evolved
* All versions prior to 20.4R3-S8-EVO;
* 21.1 versions 21.1R1-EVO and later;
* 21.2 versions prior to 21.2R3-S6-EVO;
* 21.3 versions prior to 21.3R3-S5-EVO;
* 21.4 versions prior to 21.4R3-S5-EVO;
* 22.1 versions prior to 22.1R3-S4-EVO;
* 22.2 versions prior to 22.2R3-S2-EVO;
* 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;
* 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://supportportal.juniper.net/JSA73150 | Mitigation, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://supportportal.juniper.net/JSA73150 | Mitigation, Vendor Advisory |
Impacted products
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "\nAn Improper Handling of Exceptional Conditions vulnerability in AS PATH processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a BGP update message with an AS PATH containing a large number of 4-byte ASes, leading to a Denial of Service (DoS). Continued receipt and processing of these BGP updates will create a sustained Denial of Service (DoS) condition.\n\nThis issue is hit when the router has Non-Stop Routing (NSR) enabled, has a non-4-byte-AS capable BGP neighbor, receives a BGP update message with a prefix that includes a long AS PATH containing large number of 4-byte ASes, and has to advertise the prefix towards the non-4-byte-AS capable BGP neighbor.\n\nNote: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.\nThis issue affects:\n\nJuniper Networks Junos OS:\n\n\n\n * All versions prior to 20.4R3-S8;\n * 21.1 versions 21.1R1 and later;\n * 21.2 versions prior to 21.2R3-S6;\n * 21.3 versions prior to 21.3R3-S5;\n * 21.4 versions prior to 21.4R3-S5;\n * 22.1 versions prior to 22.1R3-S4;\n * 22.2 versions prior to 22.2R3-S2;\n * 22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\n * 22.4 versions prior to 22.4R2-S1, 22.4R3.\n\n\n\n\nJuniper Networks Junos OS Evolved\n\n\n\n * All versions prior to 20.4R3-S8-EVO;\n * 21.1 versions 21.1R1-EVO and later;\n * 21.2 versions prior to 21.2R3-S6-EVO;\n * 21.3 versions prior to 21.3R3-S5-EVO;\n * 21.4 versions prior to 21.4R3-S5-EVO;\n * 22.1 versions prior to 22.1R3-S4-EVO;\n * 22.2 versions prior to 22.2R3-S2-EVO;\n * 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\n * 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO.\n\n\n\n\n\n\n"
},
{
"lang": "es",
"value": "Una vulnerabilidad de Improper Handling of Exceptional Conditions en el procesamiento AS PATH de Juniper Networks Junos OS y Junos OS Evolved permite a un atacante enviar un mensaje de actualizaci\u00f3n de BGP con un AS PATH que contiene una gran cantidad de AS de 4 bytes, lo que lleva a una Denegaci\u00f3n de Servicio ( DoS). La recepci\u00f3n y el procesamiento continuo de estas actualizaciones de BGP crear\u00e1n una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS). Este problema se produce cuando el router tiene habilitado Non-Stop Routing (NSR), tiene un vecino BGP que no es de 4 bytes con capacidad AS, recibe un mensaje de actualizaci\u00f3n de BGP con un prefijo que incluye un AS PATH largo que contiene una gran cantidad de 4 bytes. AS de bytes y tiene que anunciar el prefijo hacia el vecino BGP que no es compatible con AS de 4 bytes.\nNota: NSR no es compatible con la serie SRX y, por lo tanto, no se ve afectado por esta vulnerabilidad. \nEste problema afecta a: \nJuniper Networks Junos OS: * Todas las versiones anteriores a 20.4R3-S8; * 21.1 versiones 21.1R1 y posteriores; * Versiones 21.2 anteriores a 21.2R3-S6; * Versiones 21.3 anteriores a 21.3R3-S5; * Versiones 21.4 anteriores a 21.4R3-S5; * Versiones 22.1 anteriores a 22.1R3-S4; * Versiones 22.2 anteriores a 22.2R3-S2; * Versiones 22.3 anteriores a 22.3R2-S2, 22.3R3-S1; * Versiones 22.4 anteriores a 22.4R2-S1, 22.4R3; * Versiones 23.2 anteriores a 23.2R2. \nJuniper Networks Junos OS Evolved * Todas las versiones anteriores a 20.4R3-S8-EVO; * 21.1 versiones 21.1R1-EVO y posteriores; * Versiones 21.2 anteriores a 21.2R3-S6-EVO; * Versiones 21.3 anteriores a 21.3R3-S5-EVO; * Versiones 21.4 anteriores a 21.4R3-S5-EVO; * Versiones 22.1 anteriores a 22.1R3-S4-EVO; * Versiones 22.2 anteriores a 22.2R3-S2-EVO; * Versiones 22.3 anteriores a 22.3R2-S2-EVO, 22.3R3-S1-EVO; * Versiones 22.4 anteriores a 22.4R2-S1-EVO, 22.4R3-EVO; * Versiones 23.2 anteriores a 23.2R2-EVO."
}
],
"id": "CVE-2023-44186",
"lastModified": "2024-11-21T08:25:23.820",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "sirt@juniper.net",
"type": "Secondary"
},
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-10-11T21:15:09.890",
"references": [
{
"source": "sirt@juniper.net",
"tags": [
"Mitigation",
"Vendor Advisory"
],
"url": "https://supportportal.juniper.net/JSA73150"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Vendor Advisory"
],
"url": "https://supportportal.juniper.net/JSA73150"
}
],
"sourceIdentifier": "sirt@juniper.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-755"
}
],
"source": "sirt@juniper.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-755"
}
],
"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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