gsd-2023-0026
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a BGP update message is received over an established BGP session, and that message contains a specific, optional transitive attribute, this session will be torn down with an update message error. This issue cannot propagate beyond an affected system as the processing error occurs as soon as the update is received. This issue is exploitable remotely as the respective attribute can propagate through unaffected systems and intermediate AS (if any). Continuous receipt of a BGP update containing this attribute will create a sustained Denial of Service (DoS) condition. Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround.
This issue affects:
Juniper Networks Junos OS
15.1R1 and later versions prior to 20.4R3-S8;
21.1 version 21.1R1 and later versions prior to 21.2R3-S6;
21.3 versions prior to 21.3R3-S5;
21.4 versions prior to 21.4R3-S4;
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;
23.1 versions prior to 23.1R1-S1, 23.1R2.
Juniper Networks Junos OS Evolved
All versions prior to 20.4R3-S8-EVO;
21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO;
21.3 versions prior to 21.3R3-S5-EVO;
21.4 versions prior to 21.4R3-S4-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;
23.1 versions prior to 23.1R1-S1-EVO, 23.1R2-EVO.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-0026",
"id": "GSD-2023-0026"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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"modified": "2023-12-13T01:20:22.874052Z",
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"attackVector": "NETWORK",
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"baseScore": 7.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
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"scope": "UNCHANGED",
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"url": "https://supportportal.juniper.net/JSA71542"
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"value": "\u003cp\u003eThe following software releases have been updated to resolve this specific issue:\u003c/p\u003e\u003cp\u003eJunos OS: 20.4R3-S8*, 21.2R3-S6*, 21.3R3-S5*, 21.4R3-S4, 22.1R3-S4*, 22.2R3-S2*, 22.3R2-S2*, 22.3R3-S1*, 22.4R2-S1*, 22.4R3*, 23.1R1-S1*, 23.1R2*, 23.2R1*, and all subsequent releases;\u003c/p\u003e\u003cp\u003eJunos OS Evolved: 20.4R3-S8-EVO*, 21.2R3-S6-EVO*, 21.3R3-S5-EVO*, 21.4R3-S4-EVO, 22.1R3-S4-EVO*, 22.2R3-S2-EVO*, 22.3R2-S2-EVO*, 22.3R3-S1-EVO*, 22.4R2-S1-EVO*, 22.4R3-EVO*, 23.1R1-S1-EVO*, 23.1R2-EVO*, 23.2R1-EVO*, and all subsequent releases.\u003c/p\u003e\u003cp\u003e*Pending Publication\u003c/p\u003e"
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"value": "The workaround is to configure BGP error tolerance by way of:\n\n [ protocols bgp bgp-error-tolerance ... ]\nwhich causes malformed BGP routes to be \u0027treated as withdrawal\u0027 instead of bringing down the BGP session. Additional details can be found at https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html\n\nJuniper considers configuring this option to be a Best Common Practice (BCP) as it not only prevents this issue from happening, but protects against similar issues as well.\n\n"
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"cpe_name": [],
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},
{
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"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s2:*:*:*:*:*:*",
"cpe_name": [],
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},
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:*",
"cpe_name": [],
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:*",
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},
{
"cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:22.3:r2:*:*:*:*:*:*",
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{
"cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:22.4:r1:*:*:*:*:*:*",
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},
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"cpe_name": [],
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},
{
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],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "sirt@juniper.net",
"ID": "CVE-2023-0026"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a BGP update message is received over an established BGP session, and that message contains a specific, optional transitive attribute, this session will be torn down with an update message error. This issue cannot propagate beyond an affected system as the processing error occurs as soon as the update is received. This issue is exploitable remotely as the respective attribute can propagate through unaffected systems and intermediate AS (if any). Continuous receipt of a BGP update containing this attribute will create a sustained Denial of Service (DoS) condition. Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround.\n\nThis issue affects:\nJuniper Networks Junos OS\n15.1R1 and later versions prior to 20.4R3-S8;\n21.1 version 21.1R1 and later versions prior to 21.2R3-S6;\n21.3 versions prior to 21.3R3-S5;\n21.4 versions prior to 21.4R3-S4;\n22.1 versions prior to 22.1R3-S4;\n22.2 versions prior to 22.2R3-S2;\n22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\n22.4 versions prior to 22.4R2-S1, 22.4R3;\n23.1 versions prior to 23.1R1-S1, 23.1R2.\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S8-EVO;\n21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO;\n21.3 versions prior to 21.3R3-S5-EVO;\n21.4 versions prior to 21.4R3-S4-EVO;\n22.1 versions prior to 22.1R3-S4-EVO;\n22.2 versions prior to 22.2R3-S2-EVO;\n22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\n22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;\n23.1 versions prior to 23.1R1-S1-EVO, 23.1R2-EVO.\n"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html",
"refsource": "MISC",
"tags": [
"Product"
],
"url": "https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html"
},
{
"name": "https://supportportal.juniper.net/JSA71542",
"refsource": "MISC",
"tags": [],
"url": "https://supportportal.juniper.net/JSA71542"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"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
}
},
"lastModifiedDate": "2023-07-17T16:15Z",
"publishedDate": "2023-06-21T17:15Z"
}
}
}
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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.