github - ghsa-c966-q9gj-wmw3

ghsa-c966-q9gj-wmw3

Vulnerability from github

Published

2022-05-24 19:17

Modified

2022-05-24 19:17

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an QFX5110 switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet, leading to an information exposure vulnerability. This issue affects: Juniper Networks Junos OS on QFX5110 Series: All versions prior to 17.3R3-S12; 18.1 versions prior to 18.1R3-S13; 18.3 versions prior to 18.3R3-S5; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2;

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{
  "affected": [],
  "aliases": [
    "CVE-2021-31371"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-19T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an QFX5110 switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet, leading to an information exposure vulnerability. This issue affects: Juniper Networks Junos OS on QFX5110 Series: All versions prior to 17.3R3-S12; 18.1 versions prior to 18.1R3-S13; 18.3 versions prior to 18.3R3-S5; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2;",
  "id": "GHSA-c966-q9gj-wmw3",
  "modified": "2022-05-24T19:17:53Z",
  "published": "2022-05-24T19:17:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31371"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA11236"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-31371

Vulnerability from cvelistv5

Published

2021-10-19 18:17

Modified

2024-09-17 03:48

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

Junos OS: QFX5000 Series: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces.

References

▼	URL	Tags
	https://kb.juniper.net/JSA11236	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	Juniper Networks	Junos OS

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:55:53.697Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11236"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "QFX5000 Series"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
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              "status": "affected",
              "version": "unspecified",
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              "lessThan": "18.1R3-S13",
              "status": "affected",
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              "versionType": "custom"
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              "lessThan": "18.3R3-S5",
              "status": "affected",
              "version": "18.3",
              "versionType": "custom"
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            {
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              "status": "affected",
              "version": "19.2",
              "versionType": "custom"
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            {
              "lessThan": "19.3R2-S6, 19.3R3-S3",
              "status": "affected",
              "version": "19.3",
              "versionType": "custom"
            },
            {
              "lessThan": "19.4R1-S4, 19.4R3-S5",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1R2-S2, 20.1R3-S1",
              "status": "affected",
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              "status": "affected",
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              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
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              "status": "affected",
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        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
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              "lang": "en",
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      "providerMetadata": {
        "dateUpdated": "2021-11-02T14:08:41",
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        "shortName": "juniper"
      },
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        {
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          ],
          "url": "https://kb.juniper.net/JSA11236"
        }
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      "solutions": [
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          "lang": "en",
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        }
      ],
      "source": {
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        "defect": [
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        ],
        "discovery": "USER"
      },
      "title": "Junos OS: QFX5000 Series: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces.",
      "workarounds": [
        {
          "lang": "en",
          "value": "Configure a firewall filter to discard packets sourced from the internal network.\n\nDisabling the net.transit_re sysctl flag will also cause management traffic forwarded to the PFE ports to be dropped:\n  % sysctl -w net.transit_re=0\n\nNote that sysctl flags do not survive a reboot."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2021-10-13T16:00:00.000Z",
          "ID": "CVE-2021-31371",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS: QFX5000 Series: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces."
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
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                      "version": {
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                          },
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                          },
                          {
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                            "platform": "QFX5000 Series",
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                          {
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                          {
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            }
          ]
        },
        "exploit": [
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            "lang": "en",
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        ],
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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          }
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          }
        ]
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "juniper",
    "cveId": "CVE-2021-31371",
    "datePublished": "2021-10-19T18:17:05.112598Z",
    "dateReserved": "2021-04-15T00:00:00",
    "dateUpdated": "2024-09-17T03:48:24.106Z",
    "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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