Vulnerability-Lookup

GHSA-QPXP-5J56-GG3X

Vulnerability from github – Published: 2019-07-31 04:22 – Updated: 2023-08-08 16:12

Summary

samlr XML nodes comment attack

Details

Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by . and then the attacker's domain name.

Severity ?

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "samlr"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-20857"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-07-31T03:49:20Z",
    "nvd_published_at": "2019-07-26T12:15:00Z",
    "severity": "HIGH"
  },
  "details": "Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by `\u003c!----\u003e`. and then the attacker\u0027s domain name.",
  "id": "GHSA-qpxp-5j56-gg3x",
  "modified": "2023-08-08T16:12:35Z",
  "published": "2019-07-31T04:22:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20857"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zendesk/samlr/pull/29"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/samlr/CVE-2018-20857.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zendesk/samlr"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "samlr XML nodes comment attack"
}

GSD-2018-20857

Vulnerability from gsd - Updated: 2019-07-31 00:00

Details

Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by . and then the attacker's domain name.

Aliases

CVE-2018-20857

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2018-20857",
    "description": "Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by \u003c!----\u003e. and then the attacker\u0027s domain name.",
    "id": "GSD-2018-20857"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "samlr",
            "purl": "pkg:gem/samlr"
          }
        }
      ],
      "aliases": [
        "CVE-2018-20857",
        "GHSA-qpxp-5j56-gg3x"
      ],
      "details": "Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as\na name_id node with user@example.com followed by \u003c!----\u003e. and then the attacker\u0027s\ndomain name.\n",
      "id": "GSD-2018-20857",
      "modified": "2019-07-31T00:00:00.000Z",
      "published": "2019-07-31T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/zendesk/samlr/pull/29"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "samlr XML nodes comment attack"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-20857",
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      "problemtype": {
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2",
            "refsource": "MISC",
            "url": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2018-20857",
      "cvss_v3": 7.5,
      "date": "2019-07-31",
      "description": "Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as\na name_id node with user@example.com followed by \u003c!----\u003e. and then the attacker\u0027s\ndomain name.\n",
      "gem": "samlr",
      "ghsa": "qpxp-5j56-gg3x",
      "patched_versions": [
        "\u003e= 2.6.2"
      ],
      "title": "samlr XML nodes comment attack",
      "url": "https://github.com/zendesk/samlr/pull/29"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c2.6.2",
          "affected_versions": "All versions before 2.6.2",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2019-08-01",
          "description": "Zendesk Samlr allows attackers to perform XML injection attacks.",
          "fixed_versions": [
            "2.6.2"
          ],
          "identifier": "CVE-2018-20857",
          "identifiers": [
            "CVE-2018-20857"
          ],
          "package_slug": "gem/samlr",
          "pubdate": "2019-07-26",
          "solution": "Upgrade to fixed version",
          "title": "XML comment attack",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-20857",
            "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
          ],
          "uuid": "f84b9763-4461-4065-aa8c-def0b1c63a8b"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:zendesk:samlr:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.6.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-20857"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by \u003c!----\u003e. and then the attacker\u0027s domain name."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-20"
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        },
        "references": {
          "reference_data": [
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              ],
              "url": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-08-01T16:59Z",
      "publishedDate": "2019-07-26T12:15Z"
    }
  }
}

CVE-2018-20857 (GCVE-0-2018-20857)

Vulnerability from cvelistv5 – Published: 2019-07-26 11:41 – Updated: 2024-08-05 12:12

Summary

Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by . and then the attacker's domain name.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/zendesk/samlr/compare/v2.6.1..…

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:12:29.361Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "lang": "en",
              "type": "text"
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      ],
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        "dateUpdated": "2019-07-26T11:41:03",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
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          ],
          "url": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
        }
      ],
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        },
        "references": {
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              "url": "https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2"
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  "cveMetadata": {
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    "datePublished": "2019-07-26T11:41:03",
    "dateReserved": "2019-07-26T00:00:00",
    "dateUpdated": "2024-08-05T12:12:29.361Z",
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-QPXP-5J56-GG3X

GSD-2018-20857

CVE-2018-20857 (GCVE-0-2018-20857)

Tags

Sightings

Nomenclature