Vulnerability-Lookup

UBUNTU-CVE-2020-1953 (CVE-2020-1953)

Vulnerability from osv_ubuntu – Published: 2020-03-13 15:15 – Updated: 2025-10-24 04:48 – Source website

Details

Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.

Severity

10.0 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-1953	REPORT
	https://www.openwall.com/lists/oss-security/2020/…	REPORT
	https://lists.apache.org/thread.html/d0e00f2e147a…	REPORT
	https://lists.apache.org/thread.html/rde2186ad6ac…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2020-1953	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcommons-configuration2-java",
            "binary_version": "2.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "commons-configuration2",
        "purl": "pkg:deb/ubuntu/commons-configuration2@2.2-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.1-1",
        "2.2-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcommons-configuration2-java",
            "binary_version": "2.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "commons-configuration2",
        "purl": "pkg:deb/ubuntu/commons-configuration2@2.2-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.",
  "id": "UBUNTU-CVE-2020-1953",
  "modified": "2025-10-24T04:48:15Z",
  "published": "2020-03-13T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-1953"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2020/03/13/1"
    },
    {
      "type": "REPORT",
      "url": "https://lists.apache.org/thread.html/d0e00f2e147a9e9b13a6829133092f349b2882bf6860397368a52600@%3Cannounce.tomcat.apache.org%3E"
    },
    {
      "type": "REPORT",
      "url": "https://lists.apache.org/thread.html/rde2186ad6ac0d6ed8d51af7509244adcf1ce0f9a3b7e1d1dd3b64676@%3Ccommits.camel.apache.org%3E"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-1953"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-1953"
  ]
}

CVE-2020-1953 (GCVE-0-2020-1953)

Vulnerability from cvelistv5 – Published: 2020-03-13 14:58 – Updated: 2024-08-04 06:53

Summary

Severity

No CVSS data available.

CWE

Code execution

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1067 records in the last 180 days details

References

4 references

URL	Tags
https://lists.apache.org/thread.html/rde2186ad6ac…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/d0e00f2e147a…	x_refsource_MISC
https://www.oracle.com/security-alerts/cpuoct2020.html	x_refsource_MISC
https://lists.apache.org/thread.html/r16a2e949e35…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Apache	Apache Commons Configuration	Affected: 2.2 Affected: 2.3 Affected: 2.4 Affected: 2.5 Affected: 2.6

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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