Vulnerability-Lookup

mal-2026-16175

Vulnerability from ossf_malicious_packages

Published

2026-09-15 12:01

Modified

2026-09-16 10:21

Summary

Malicious code in csa-mfa (npm)

Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (959d2728ff38a804033ca7e07235b3a14bce65bd0e948077ba148a53c6cccff9)

package.json declares a preinstall script that runs wget against http://169.58.142.14:8080/ with query parameters populated by shell command substitution of whoami, ls, and hostname. On npm install this automatically transmits the installer's username, current-directory listing, and hostname to a hardcoded bare-IP HTTP endpoint unrelated to any legitimate publisher infrastructure. There is no functional package purpose served by this behavior.

Source: ossf-package-analysis (a11e3bfb8822762235630fbc44ccd99a2ccd272eba3f16bf242b74c4eb1cdc86)

The OpenSSF Package Analysis project identified 'csa-mfa' @ 1.1.16 (npm) as malicious.

It is considered malicious because:

The package executes one or more commands associated with malicious behavior.

CWE

CWE-506 - The product contains code that appears to be malicious in nature.
CWE-506 - The product contains code that appears to be malicious in nature.

Credits

Amazon Inspector inspector-research@amazon.com

OpenSSF: Package Analysis github.com/ossf/package-analysis openssf.slack.com/channels/package_analysis

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          },
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "package.json",
              "sha256": "aa7b28fbb5fb6fa72194395ecb9d554ce6aa85720ead0b92ee80e5d42d3391f8",
              "tlsh": "f5f054bc9a24df531dc64f3414b15247b06077bf80527c08dbf33586a55d9c22c3c918"
            }
          ],
          "package_integrity": [
            {
              "filename": "csa-mfa-1.1.15.tgz",
              "hashes": {
                "sha1": "175585949685dcf833767c6100218a9755241145",
                "sha512_sri": "sha512-Dvi3q0YCNc7CFHLtaTk+5Op9lE5cHcZyE/BjOWxxJdoYTYtraFkjUZrdQT0eqKyDqwFY8hJqLbzNmxtasKtqkQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "csa-mfa"
      },
      "versions": [
        "1.1.15",
        "1.1.16"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://github.com/ossf/package-analysis",
        "https://openssf.slack.com/channels/package_analysis"
      ],
      "name": "OpenSSF: Package Analysis",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020067",
        "import_time": "2026-09-15T16:19:16.003396562Z",
        "modified_time": "2026-09-15T15:55:51Z",
        "sha256": "127e5aef88d9d0461a01b970500dcf6a839b1e89a93c0b6578216cdc98058c09",
        "source": "amazon-inspector",
        "versions": [
          "1.1.15"
        ]
      },
      {
        "id": "IN-MAL-2026-020068",
        "import_time": "2026-09-15T16:19:16.055154654Z",
        "modified_time": "2026-09-15T15:56:01Z",
        "sha256": "959d2728ff38a804033ca7e07235b3a14bce65bd0e948077ba148a53c6cccff9",
        "source": "amazon-inspector",
        "versions": [
          "1.1.16"
        ]
      },
      {
        "import_time": "2026-09-16T10:19:31.637945853Z",
        "modified_time": "2026-09-15T12:01:27Z",
        "sha256": "a11e3bfb8822762235630fbc44ccd99a2ccd272eba3f16bf242b74c4eb1cdc86",
        "source": "ossf-package-analysis",
        "versions": [
          "1.1.16"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (959d2728ff38a804033ca7e07235b3a14bce65bd0e948077ba148a53c6cccff9)\npackage.json declares a preinstall script that runs wget against http://169.58.142.14:8080/ with query parameters populated by shell command substitution of whoami, ls, and hostname. On npm install this automatically transmits the installer\u0027s username, current-directory listing, and hostname to a hardcoded bare-IP HTTP endpoint unrelated to any legitimate publisher infrastructure. There is no functional package purpose served by this behavior.\n\n## Source: ossf-package-analysis (a11e3bfb8822762235630fbc44ccd99a2ccd272eba3f16bf242b74c4eb1cdc86)\nThe OpenSSF Package Analysis project identified \u0027csa-mfa\u0027 @ 1.1.16 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.\n",
  "id": "MAL-2026-16175",
  "modified": "2026-09-16T10:21:43.289980729Z",
  "published": "2026-09-15T12:01:27Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/csa-mfa/v/1.1.15"
    },
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/csa-mfa/v/1.1.16"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in csa-mfa (npm)"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.