Vulnerability-Lookup

mal-2026-17632

Vulnerability from ossf_malicious_packages

Published

2026-10-06 03:58

Modified

2026-10-06 03:58

Summary

Malicious code in internallib_v23 (npm)

Details

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

Source: amazon-inspector (bf294381eb4f87a0dcccbd00977ac38ab25a8108639c8cc08543c7d0e09b5f36)

index.js line 5 exports a function that invokes /bin/bash to curl https://reverse-shell.sh/10.0.19.80:4443 and pipe the response to a shell, delivering an interactive reverse shell to the hardcoded endpoint 10.0.19.80:4443 on the host where the exported function is called. The destination is a hardcoded private-range IP, there is no authentication, no documentation of the behavior, and the fetched content is executed directly. The package's only exported functionality is this backdoor dropper.

CWE

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

Credits

Amazon Inspector inspector-research@amazon.com

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"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "index.js",
              "sha256": "114c8a7de3dfb0f039f9f2c1f16c6eaea1a266d75a598a1bfca048e491650e80",
              "tlsh": "57c022b7969a022af74961e09e15f861a8478c602a2800b0a014405110c284d32170ff"
            }
          ],
          "package_integrity": [
            {
              "filename": "internallib_v23-1.0.1.tgz",
              "hashes": {
                "sha1": "4c8f6724f47c513fd172699140bf409c8e42ffe7",
                "sha512_sri": "sha512-JONfS11/r/G6mT4hmc9HDD9bt0OYK/1w0bpodgpkP3UXTw3KinTAog5n+l3AAW3E6fwP8uiHEzjL+OlFyCBDpA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "internallib_v23"
      },
      "versions": [
        "1.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-021094",
        "import_time": "2026-10-06T04:22:56.596411383Z",
        "modified_time": "2026-10-06T03:58:47Z",
        "sha256": "bf294381eb4f87a0dcccbd00977ac38ab25a8108639c8cc08543c7d0e09b5f36",
        "source": "amazon-inspector",
        "versions": [
          "1.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (bf294381eb4f87a0dcccbd00977ac38ab25a8108639c8cc08543c7d0e09b5f36)\nindex.js line 5 exports a function that invokes /bin/bash to curl https://reverse-shell.sh/10.0.19.80:4443 and pipe the response to a shell, delivering an interactive reverse shell to the hardcoded endpoint 10.0.19.80:4443 on the host where the exported function is called. The destination is a hardcoded private-range IP, there is no authentication, no documentation of the behavior, and the fetched content is executed directly. The package\u0027s only exported functionality is this backdoor dropper.\n",
  "id": "MAL-2026-17632",
  "modified": "2026-10-06T03:58:47Z",
  "published": "2026-10-06T03:58:47Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/internallib_v23/v/1.0.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in internallib_v23 (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.

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.

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