Vulnerability-Lookup

mal-2026-17635

Vulnerability from ossf_malicious_packages

Published

2026-10-06 03:56

Modified

2026-10-06 03:56

Summary

Malicious code in internallib_v875 (npm)

Details

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

Source: amazon-inspector (a5772f4d8bb3df24cbd5859edef78f7770d547d4c366626552cd2dda539f1440)

internallib_v875 ships an index.js whose exported command() function invokes /bin/bash -c with curl piped to sh, fetching a reverse-shell payload from https://reverse-shell.sh targeted at the hardcoded endpoint 10.0.19.80:8443. Any consumer that requires this package and calls the exported function triggers a fetch-and-execute of attacker-controlled shell content, giving whoever controls that IP:port an interactive shell on the host. The destination is unrelated to any legitimate publisher, the fetched bytes are executed without verification, and the package has no other functionality consistent with its name.

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": "a08e3608d9cb7ab102dfda5140ebe691d5a115e6af5f0fc2518a66f232217ab4",
              "tlsh": "c7c0c0b786d7023af74961e0de15f861b8478c703a3800b0b004405210c3c4e32070ff"
            }
          ],
          "package_integrity": [
            {
              "filename": "internallib_v875-1.0.1.tgz",
              "hashes": {
                "sha1": "21996a263827cc7a46d5559a71e10c5e7eab4cbe",
                "sha512_sri": "sha512-wHiz8c7Tfe+j2q3O26Wu7A2oGSC5gakoIfTTfAusrVrxRKA3xamd4zfC/PYLfbHHvs5dsqVeEWs/0GPVji77ZQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "internallib_v875"
      },
      "versions": [
        "1.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-021084",
        "import_time": "2026-10-06T04:22:56.031128288Z",
        "modified_time": "2026-10-06T03:56:26Z",
        "sha256": "a5772f4d8bb3df24cbd5859edef78f7770d547d4c366626552cd2dda539f1440",
        "source": "amazon-inspector",
        "versions": [
          "1.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (a5772f4d8bb3df24cbd5859edef78f7770d547d4c366626552cd2dda539f1440)\ninternallib_v875 ships an index.js whose exported command() function invokes /bin/bash -c with curl piped to sh, fetching a reverse-shell payload from https://reverse-shell.sh targeted at the hardcoded endpoint 10.0.19.80:8443. Any consumer that requires this package and calls the exported function triggers a fetch-and-execute of attacker-controlled shell content, giving whoever controls that IP:port an interactive shell on the host. The destination is unrelated to any legitimate publisher, the fetched bytes are executed without verification, and the package has no other functionality consistent with its name.\n",
  "id": "MAL-2026-17635",
  "modified": "2026-10-06T03:56:26Z",
  "published": "2026-10-06T03:56:26Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/internallib_v875/v/1.0.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in internallib_v875 (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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