Vulnerability-Lookup

FKIE_CVE-2020-1677

Vulnerability from fkie_nvd - Published: 2020-10-16 21:15 - Updated: 2026-06-17 03:02

Severity

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

Summary

When SAML authentication is enabled, Juniper Networks Mist Cloud UI might incorrectly handle child elements in SAML responses, allowing a remote attacker to modify a valid SAML response without invalidating its cryptographic signature to bypass SAML authentication security controls. This issue affects all Juniper Networks Mist Cloud UI versions prior to September 2 2020.

References

	URL	Tags
	sirt@juniper.net	https://kb.juniper.net/JSA11072	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://kb.juniper.net/JSA11072	Vendor Advisory

Impacted products

	Vendor	Product	Version
	juniper	mist_cloud_ui	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "MIST Cloud UI",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "09/02/2020",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "sirt@juniper.net"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:juniper:mist_cloud_ui:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E2A42305-039A-4AAC-8EEC-2D5421C42C8A",
              "versionEndExcluding": "2020-09-02",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When SAML authentication is enabled, Juniper Networks Mist Cloud UI might incorrectly handle child elements in SAML responses, allowing a remote attacker to modify a valid SAML response without invalidating its cryptographic signature to bypass SAML authentication security controls. This issue affects all Juniper Networks Mist Cloud UI versions prior to September 2 2020."
    },
    {
      "lang": "es",
      "value": "Cuando la autenticaci\u00f3n SAML est\u00e1 habilitada, Juniper Networks Mist Cloud UI puede manejar incorrectamente los elementos secundarios en las respuestas de SAML, permitiendo a un atacante remoto modificar una respuesta SAML v\u00e1lida sin invalidar su firma criptogr\u00e1fica para omitir los controles de seguridad de autenticaci\u00f3n SAML.\u0026#xa0;Este problema afecta a todas las versiones de Juniper Networks Mist Cloud UI anteriores al 2 de septiembre de 2020"
    }
  ],
  "id": "CVE-2020-1677",
  "lastModified": "2026-06-17T03:02:10.870",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.7,
        "source": "sirt@juniper.net",
        "type": "Secondary"
      }
    ]
  },
  "published": "2020-10-16T21:15:13.550",
  "references": [
    {
      "source": "sirt@juniper.net",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.juniper.net/JSA11072"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.juniper.net/JSA11072"
    }
  ],
  "sourceIdentifier": "sirt@juniper.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "sirt@juniper.net",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-1677 (GCVE-0-2020-1677)

Vulnerability from cvelistv5 – Published: 2020-10-16 20:31 – Updated: 2024-09-16 22:02

Title

Juniper Networks Mist Cloud UI: SAML authentication attribute elements handling vulnerability.

Summary

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CWE

CWE-20 - Improper Input Validation

Assigner

juniper CNA under the mitre root

CNA scorecard B 85/100 over 175 records in the last 180 days details

References

1 reference

URL	Tags
https://kb.juniper.net/JSA11072	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Juniper Networks	MIST Cloud UI	Affected: unspecified , < 09/02/2020 (custom)

Date Public

2020-10-14 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T06:46:29.708Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11072"
          }
        ],
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      }
    ],
    "cna": {
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          "product": "MIST Cloud UI",
          "vendor": "Juniper Networks",
          "versions": [
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      ],
      "datePublic": "2020-10-14T00:00:00.000Z",
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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      "references": [
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      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Mist Cloud UI has been updated on September 2 2020 to resolve this specific issue."
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        }
      ],
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      "x_legacyV4Record": {
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          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2020-10-14T16:00:00.000Z",
          "ID": "CVE-2020-1677",
          "STATE": "PUBLIC",
          "TITLE": "Juniper Networks Mist Cloud UI: SAML authentication attribute elements handling vulnerability."
        },
        "affects": {
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  },
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}

Sightings

Author	Source	Type	Date	Other

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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