ubuntu-cve-2021-28963
Vulnerability from osv_ubuntu
Published
2021-03-22 08:15
Modified
2026-04-22 07:39
Summary
Details

Shibboleth Service Provider before 3.2.1 allows content injection because template generation uses attacker-controlled parameters.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libapache2-mod-shib2",
            "binary_version": "2.5.3+dfsg-2.1build1"
          },
          {
            "binary_name": "libshibsp-plugins",
            "binary_version": "2.5.3+dfsg-2.1build1"
          },
          {
            "binary_name": "libshibsp6",
            "binary_version": "2.5.3+dfsg-2.1build1"
          },
          {
            "binary_name": "shibboleth-sp2-common",
            "binary_version": "2.5.3+dfsg-2.1build1"
          },
          {
            "binary_name": "shibboleth-sp2-schemas",
            "binary_version": "2.5.3+dfsg-2.1build1"
          },
          {
            "binary_name": "shibboleth-sp2-utils",
            "binary_version": "2.5.3+dfsg-2.1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "shibboleth-sp2",
        "purl": "pkg:deb/ubuntu/shibboleth-sp2@2.5.3+dfsg-2.1build1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.3+dfsg-2.1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libapache2-mod-shib2",
            "binary_version": "2.6.1+dfsg1-2"
          },
          {
            "binary_name": "libshibsp-plugins",
            "binary_version": "2.6.1+dfsg1-2"
          },
          {
            "binary_name": "libshibsp7",
            "binary_version": "2.6.1+dfsg1-2"
          },
          {
            "binary_name": "shibboleth-sp2-common",
            "binary_version": "2.6.1+dfsg1-2"
          },
          {
            "binary_name": "shibboleth-sp2-utils",
            "binary_version": "2.6.1+dfsg1-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "shibboleth-sp2",
        "purl": "pkg:deb/ubuntu/shibboleth-sp2@2.6.1+dfsg1-2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.6.0+dfsg1-4",
        "2.6.0+dfsg1-5",
        "2.6.0+dfsg1-5build1",
        "2.6.1+dfsg1-1",
        "2.6.1+dfsg1-2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libapache2-mod-shib",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "libapache2-mod-shib2",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "libshibsp-plugins",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "libshibsp8",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "shibboleth-sp-common",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "shibboleth-sp-utils",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "shibboleth-sp2-common",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          },
          {
            "binary_name": "shibboleth-sp2-utils",
            "binary_version": "3.0.4+dfsg1-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "shibboleth-sp",
        "purl": "pkg:deb/ubuntu/shibboleth-sp@3.0.4+dfsg1-1ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.4+dfsg1-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.4+dfsg1-1",
        "3.0.4+dfsg1-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libapache2-mod-shib",
            "binary_version": "3.3.0+dfsg1-1"
          },
          {
            "binary_name": "libshibsp-plugins",
            "binary_version": "3.3.0+dfsg1-1"
          },
          {
            "binary_name": "libshibsp10",
            "binary_version": "3.3.0+dfsg1-1"
          },
          {
            "binary_name": "shibboleth-sp-common",
            "binary_version": "3.3.0+dfsg1-1"
          },
          {
            "binary_name": "shibboleth-sp-utils",
            "binary_version": "3.3.0+dfsg1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "shibboleth-sp",
        "purl": "pkg:deb/ubuntu/shibboleth-sp@3.3.0+dfsg1-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.2+dfsg1-1ubuntu1",
        "3.3.0+dfsg1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Shibboleth Service Provider before 3.2.1 allows content injection because template generation uses attacker-controlled parameters.",
  "id": "UBUNTU-CVE-2021-28963",
  "modified": "2026-04-22T07:39:59Z",
  "published": "2021-03-22T08:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-28963"
    },
    {
      "type": "REPORT",
      "url": "https://shibboleth.net/community/advisories/secadv_20210317.txt"
    },
    {
      "type": "REPORT",
      "url": "https://issues.shibboleth.net/jira/browse/SSPCPP-922"
    },
    {
      "type": "REPORT",
      "url": "https://git.shibboleth.net/view/?p=cpp-sp.git;a=commit;h=d1dbebfadc1bdb824fea63843c4c38fa69e54379"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.debian.org/985405"
    },
    {
      "type": "REPORT",
      "url": "https://www.debian.org/security/2021/dsa-4872"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4925-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-28963"
    }
  ],
  "related": [
    "USN-4925-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-28963"
  ]
}



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Sightings

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.


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