github - ghsa-8pvv-px4f-4px7

ghsa-8pvv-px4f-4px7

Vulnerability from github

Published

2023-10-11 21:33

Modified

2024-03-06 00:31

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

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.

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;
23.2 versions prior to 23.2R2.

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;
23.2 versions prior to 23.2R2-EVO.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-44186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-755"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-11T21:15:09Z",
    "severity": "HIGH"
  },
  "details": "\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\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  *  23.2 versions prior to 23.2R2.\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  *  23.2 versions prior to 23.2R2-EVO.\n\n\n\n\n\n\n",
  "id": "GHSA-8pvv-px4f-4px7",
  "modified": "2024-03-06T00:31:26Z",
  "published": "2023-10-11T21:33:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44186"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA73150"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-44186

Vulnerability from cvelistv5

Published

2023-10-11 20:08

Modified

2024-08-02 19:59

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

Junos OS and Junos OS Evolved: RPD crash when attempting to send a very long AS PATH to a non-4-byte-AS capable BGP neighbor

References

▼	URL	Tags
	https://supportportal.juniper.net/JSA73150	vendor-advisory

Impacted products

▼	Vendor	Product
	Juniper Networks	Junos OS
	Juniper Networks	Junos OS Evolved

Show details on NVD website

JSON

To clipboard

{
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      {
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          "dateUpdated": "2024-08-02T19:59:51.607Z",
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              "status": "affected",
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            },
            {
              "lessThan": "21.4R3-S5-EVO",
              "status": "affected",
              "version": "21.4",
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              "lessThan": "22.1R3-S4-EVO",
              "status": "affected",
              "version": "22.1",
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            },
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              "lessThan": "22.2R3-S2-EVO",
              "status": "affected",
              "version": "22.2",
              "versionType": "semver"
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              "lessThan": "22.3R2-S2-EVO, 22.3R3-S1-EVO",
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              "version": "22.3",
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        }
      ],
      "configurations": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eNonstop Active Routing is enabled using the following configuration:\u003c/p\u003e \u003ctt\u003e[edit chassis redundancy]\u003cbr\u003e\u003c/tt\u003e\u003ctt\u003egraceful-switchover;\u003cbr\u003e\u003c/tt\u003e\u003ctt\u003e\u003cbr\u003e[edit routing-options]\u003cbr\u003e\u003c/tt\u003e\u003ctt\u003enonstop-routing;\u003c/tt\u003e"
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          "value": "Nonstop Active Routing is enabled using the following configuration:\n\n [edit chassis redundancy]\ngraceful-switchover;\n\n[edit routing-options]\nnonstop-routing;"
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      "datePublic": "2023-10-11T16:00:00.000Z",
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              "value": "\n\n\u003cp\u003eAn 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.\u003c/p\u003e\u003cp\u003eThis 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.\u003c/p\u003eNote: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.\u003cbr\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions prior to 20.4R3-S8;\u003c/li\u003e\u003cli\u003e21.1 versions 21.1R1 and later;\u003c/li\u003e\u003cli\u003e21.2 versions prior to 21.2R3-S6;\u003c/li\u003e\u003cli\u003e21.3 versions prior to 21.3R3-S5;\u003c/li\u003e\u003cli\u003e21.4 versions prior to 21.4R3-S5;\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S4;\u003c/li\u003e\u003cli\u003e22.2 versions prior to 22.2R3-S2;\u003c/li\u003e\u003cli\u003e22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\u003c/li\u003e\u003cli\u003e22.4 versions prior to 22.4R2-S1, 22.4R3.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS Evolved\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions prior to 20.4R3-S8-EVO;\u003c/li\u003e\u003cli\u003e21.1 versions 21.1R1-EVO and later;\u003c/li\u003e\u003cli\u003e21.2 versions prior to 21.2R3-S6-EVO;\u003c/li\u003e\u003cli\u003e21.3 versions prior to 21.3R3-S5-EVO;\u003c/li\u003e\u003cli\u003e21.4 versions prior to 21.4R3-S5-EVO;\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S4-EVO;\u003c/li\u003e\u003cli\u003e22.2 versions prior to 22.2R3-S2-EVO;\u003c/li\u003e\u003cli\u003e22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\u003c/li\u003e\u003cli\u003e22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\n\n"
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          "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"
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          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"
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      "metrics": [
        {
          "cvssV3_1": {
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            "attackVector": "NETWORK",
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      "workarounds": [
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          "lang": "en",
          "value": "Current operational and security best practices, such as limiting the AS PATH length, should mitigate risk of this issue.\n\nBelow is an example configuration to limit AS PATH to 30 entries:\n\nset groups BASE-POLICY policy-options policy-statement MaxAS-Limit-30 term more-than-30 from protocol bgp\nset groups BASE-POLICY policy-options policy-statement MaxAS-Limit-30 term more-than-30 from as-path 31as\nset groups BASE-POLICY policy-options policy-statement MaxAS-Limit-30 term more-than-30 then reject\nset groups BASE-POLICY policy-options policy-statement MaxAS-Limit-30 then accept\nset groups BASE-POLICY policy-options policy-statement Customer-IN term MaxAS-Limit from policy MaxAS-Limit-30\nset groups BASE-BGP protocols bgp group \u003c*-CUSTOMER\u003e import Customer-IN\nset groups BASE-PREFIX-LISTS policy-options as-path 31as \".{31,}\""
        }
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    "assignerShortName": "juniper",
    "cveId": "CVE-2023-44186",
    "datePublished": "2023-10-11T20:08:26.308Z",
    "dateReserved": "2023-09-26T19:30:27.953Z",
    "dateUpdated": "2024-08-02T19:59:51.607Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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