GSD-2017-9269

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content.
Aliases
Aliases
CVE-2017-9269
To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-9269",
    "description": "In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content.",
    "id": "GSD-2017-9269",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-9269.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-9269"
      ],
      "details": "In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content.",
      "id": "GSD-2017-9269",
      "modified": "2023-12-13T01:21:07.286677Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@microfocus.com",
        "DATE_PUBLIC": "2017-08-03T00:00:00.000Z",
        "ID": "CVE-2017-9269",
        "STATE": "PUBLIC",
        "TITLE": "lack of keypinning in libzypp could lead to repository switching"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "libzypp",
                    "version": {
                      "version_data": [
                        {
                          "affected": "\u003c",
                          "version_value": "201808"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "SUSE"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Moritz Duge and Till Doerges from PRESENSE"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.0"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Malicious mirrors could downgrade repositories from trusted signed repositories to unsigned malicious repositories."
              }
            ]
          },
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-757"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "SUSE-SU-2017:2040",
            "refsource": "SUSE",
            "url": "https://lists.opensuse.org/opensuse-security-announce/2017-08/msg00002.html"
          },
          {
            "name": "https://bugzilla.suse.com/show_bug.cgi?id=1045735",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1045735"
          },
          {
            "name": "https://www.suse.com/de-de/security/cve/CVE-2017-9269/",
            "refsource": "CONFIRM",
            "url": "https://www.suse.com/de-de/security/cve/CVE-2017-9269/"
          }
        ]
      },
      "source": {
        "defect": [
          "https://bugzilla.suse.com/show_bug.cgi?id=1045735"
        ],
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:opensuse:libzypp:-:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@suse.com",
          "ID": "CVE-2017-9269"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-20"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.suse.com/de-de/security/cve/CVE-2017-9269/",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.suse.com/de-de/security/cve/CVE-2017-9269/"
            },
            {
              "name": "SUSE-SU-2017:2040",
              "refsource": "SUSE",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://lists.opensuse.org/opensuse-security-announce/2017-08/msg00002.html"
            },
            {
              "name": "https://bugzilla.suse.com/show_bug.cgi?id=1045735",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking"
              ],
              "url": "https://bugzilla.suse.com/show_bug.cgi?id=1045735"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2019-10-09T23:30Z",
      "publishedDate": "2018-03-01T20:29Z"
    }
  }
}


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  • 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.
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Detection rules are retrieved from Rulezet.