pysec-2020-94
Vulnerability from pysec
Published
2020-01-13 19:15
Modified
2020-01-27 18:15
Details

PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.

Impacted products
Name purl
pysaml2 pkg:pypi/pysaml2
Aliases


To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pysaml2",
        "purl": "pkg:pypi/pysaml2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f27c7e7a7010f83380566a219fd6a290a00f2b6e"
            },
            {
              "fixed": "5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25"
            }
          ],
          "repo": "https://github.com/IdentityPython/pysaml2",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.3",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.1.0",
        "2.0.0",
        "2.1.0",
        "2.2.0",
        "2.3.0",
        "2.4.0",
        "3.0.0",
        "3.0.2",
        "4.0.0",
        "4.0.1",
        "4.0.2",
        "4.0.3",
        "4.0.4",
        "4.0.5rc1",
        "4.0.5",
        "4.1.0",
        "4.2.0",
        "4.3.0",
        "4.4.0",
        "4.5.0",
        "4.6.0",
        "4.6.1",
        "4.6.2",
        "4.6.3",
        "4.6.4",
        "4.6.5",
        "4.7.0",
        "4.8.0",
        "4.9.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-5390",
    "GHSA-qf7v-8hj3-4xw7"
  ],
  "details": "PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.",
  "id": "PYSEC-2020-94",
  "modified": "2020-01-27T18:15:00Z",
  "published": "2020-01-13T19:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/IdentityPython/pysaml2/commit/f27c7e7a7010f83380566a219fd6a290a00f2b6e"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/pysaml2/5.0.0/"
    },
    {
      "type": "FIX",
      "url": "https://github.com/IdentityPython/pysaml2/commit/5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25"
    },
    {
      "type": "WEB",
      "url": "https://github.com/IdentityPython/pysaml2/releases"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4245-1/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2020/dsa-4630"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/02/msg00025.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-qf7v-8hj3-4xw7"
    }
  ]
}


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