GHSA-XRR9-RH8P-433V

Vulnerability from github – Published: 2020-01-27 19:28 – Updated: 2021-01-08 20:32
VLAI?
Summary
Request smuggling is possible when both chunked TE and content length specified
Details

Impact

Request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle alone \n as a headers separator.

Patches

https://github.com/ktorio/ktor/pull/1547

Workarounds

None except migrating to a better proxy.

References

https://portswigger.net/web-security/request-smuggling https://tools.ietf.org/html/rfc7230#section-9.5

Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.ktor:ktor-client-cio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.ktor:ktor-server-cio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-5207"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-01-27T19:28:00Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "### Impact\nRequest smuggling is possible when running behind a proxy that doesn\u0027t handle Content-Length and Transfer-Encoding properly or doesn\u0027t handle alone \\n as a headers separator.\n\n### Patches\nhttps://github.com/ktorio/ktor/pull/1547\n\n### Workarounds\nNone except migrating to a better proxy.\n\n### References\nhttps://portswigger.net/web-security/request-smuggling\nhttps://tools.ietf.org/html/rfc7230#section-9.5",
  "id": "GHSA-xrr9-rh8p-433v",
  "modified": "2021-01-08T20:32:37Z",
  "published": "2020-01-27T19:28:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5207"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ktorio/ktor/pull/1547"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Request smuggling is possible when both chunked TE and content length specified"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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