ghsa-qhx9-7hx7-cp4r
Vulnerability from github
Published
2021-04-07 21:05
Modified
2024-09-13 14:20
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
6.1 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
bottle HTTP Request smuggling
Details

The package bottle before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "bottle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.19"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-28473"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-06T20:59:20Z",
    "nvd_published_at": "2021-01-18T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The package bottle before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
  "id": "GHSA-qhx9-7hx7-cp4r",
  "modified": "2024-09-13T14:20:37Z",
  "published": "2021-04-07T21:05:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28473"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bottlepy/bottle/commit/57a2f22e0c1d2b328c4f54bf75741d74f47f1a6b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-qhx9-7hx7-cp4r"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/bottlepy/bottle"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/bottle/PYSEC-2021-129.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00019.html"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "bottle HTTP Request smuggling"
}


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