GSD-2019-15795

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.
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CVE-2019-15795
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{
  "GSD": {
    "alias": "CVE-2019-15795",
    "description": "python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.",
    "id": "GSD-2019-15795",
    "references": [
      "https://www.debian.org/security/2020/dsa-4609",
      "https://ubuntu.com/security/CVE-2019-15795"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-15795"
      ],
      "details": "python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.",
      "id": "GSD-2019-15795",
      "modified": "2023-12-13T01:23:38.397418Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "AKA": "",
        "ASSIGNER": "security@ubuntu.com",
        "DATE_PUBLIC": "2019-08-06T16:33:00.000Z",
        "ID": "CVE-2019-15795",
        "STATE": "PUBLIC",
        "TITLE": "python-apt uses MD5 for validation"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Python-apt",
                    "version": {
                      "version_data": [
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "0.8.3",
                          "version_value": "0.8.3ubuntu7.5"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
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                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.1.0",
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                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.6.5",
                          "version_value": "1.6.5ubuntu0.1"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.9.0",
                          "version_value": "1.9.0ubuntu1.2"
                        }
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                    }
                  }
                ]
              },
              "vendor_name": "Canonical"
            }
          ]
        }
      },
      "configuration": [],
      "credit": [
        {
          "lang": "eng",
          "value": "Julian Andres Klode"
        }
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      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5."
          }
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      },
      "exploit": [],
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        }
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      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm"
              }
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          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4247-1/"
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          {
            "name": "",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4247-3/"
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        "defect": [
          "https://bugs.launchpad.net/ubuntu/%2Bsource/python-apt/%2Bbug/1858972"
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        "discovery": "UNKNOWN"
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      "work_around": []
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      "advisories": [
        {
          "affected_range": "\u003c=0.7.8",
          "affected_versions": "All versions up to 0.7.8",
          "cvss_v2": "AV:N/AC:H/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-327",
            "CWE-937"
          ],
          "date": "2023-08-14",
          "description": "python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.",
          "fixed_versions": [],
          "identifier": "CVE-2019-15795",
          "identifiers": [
            "GHSA-rp8m-h266-53jh",
            "CVE-2019-15795"
          ],
          "not_impacted": "",
          "package_slug": "pypi/python-apt",
          "pubdate": "2022-05-24",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Use of a Broken or Risky Cryptographic Algorithm",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-15795",
            "https://usn.ubuntu.com/4247-1/",
            "https://usn.ubuntu.com/4247-3/",
            "https://github.com/advisories/GHSA-rp8m-h266-53jh"
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                    "cpe23Uri": "cpe:2.3:a:ubuntu:python-apt:1.8.0:alpha0\\~ubuntu2:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  },
                  {
                    "cpe23Uri": "cpe:2.3:a:ubuntu:python-apt:1.8.1:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  },
                  {
                    "cpe23Uri": "cpe:2.3:a:ubuntu:python-apt:1.8.2:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  },
                  {
                    "cpe23Uri": "cpe:2.3:a:ubuntu:python-apt:1.8.3:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  },
                  {
                    "cpe23Uri": "cpe:2.3:a:ubuntu:python-apt:1.8.4:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@ubuntu.com",
          "ID": "CVE-2019-15795"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-327"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "UBUNTU",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://usn.ubuntu.com/4247-1/"
            },
            {
              "name": "N/A",
              "refsource": "UBUNTU",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://usn.ubuntu.com/4247-3/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.6,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 4.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2020-04-08T18:23Z",
      "publishedDate": "2020-03-26T13:15Z"
    }
  }
}


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Tags
Taxonomy of the tags.




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.