Vulnerability-Lookup

MAL-2026-16370

Vulnerability from ossf_malicious_packages

Published

2026-09-21 21:31

Modified

2026-09-21 21:31

Summary

Malicious code in @uol-afiliados/affiliated-config-lib (npm)

Details

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

Source: amazon-inspector (2cd4acce57eda08c1b8716118854cad32ecfc59e35e91c03d664ac452ee6716d)

@uol-afiliados/affiliated-config-lib@102.0.0 declares a preinstall hook (node index.js) that shells out via require('child_process').exec to run curl against a subdomain of hqbv58hgt1sjk7vf7ru4o0mwzn5etahz.oastify.com (Burp Collaborator out-of-band interaction infrastructure). The subdomain is constructed with shell command substitution $(hostname).$(whoami), so the installer's host name and current user name are embedded in the DNS/HTTP request and sent to the attacker-controlled collector automatically on npm install. The package ships no legitimate functionality — the sole install-time effect is host/user identifier exfiltration. The scoped name @uol-afiliados/* mimics an internal organization namespace, consistent with dependency-confusion reconnaissance.

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": "7dca980661065bc2b9879c53f70d106a7c5efa9232a931907f74878b33c97b9f",
              "tlsh": "e4e07d4919f5993a72b39866fd2b581f79834952113af2c3bdcf8b502784948c4962c9"
            }
          ],
          "package_integrity": [
            {
              "filename": "affiliated-config-lib-102.0.0.tgz",
              "hashes": {
                "sha1": "44c54e6e5ef263dc620046a6c3296f26a7ee3a91",
                "sha512_sri": "sha512-Et6str2xreJXzh0z0CrNVxEn1k7Txc+nw8hBXTLtIXuSnxoEj1Tpa4Q5t+FoKTOqbQbhlDeltKyHrl9VFzsloA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "@uol-afiliados/affiliated-config-lib"
      },
      "versions": [
        "102.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020280",
        "import_time": "2026-09-21T21:37:45.104865883Z",
        "modified_time": "2026-09-21T21:31:29Z",
        "sha256": "2cd4acce57eda08c1b8716118854cad32ecfc59e35e91c03d664ac452ee6716d",
        "source": "amazon-inspector",
        "versions": [
          "102.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2cd4acce57eda08c1b8716118854cad32ecfc59e35e91c03d664ac452ee6716d)\n@uol-afiliados/affiliated-config-lib@102.0.0 declares a preinstall hook (`node index.js`) that shells out via `require(\u0027child_process\u0027).exec` to run `curl` against a subdomain of `hqbv58hgt1sjk7vf7ru4o0mwzn5etahz.oastify.com` (Burp Collaborator out-of-band interaction infrastructure). The subdomain is constructed with shell command substitution `$(hostname).$(whoami)`, so the installer\u0027s host name and current user name are embedded in the DNS/HTTP request and sent to the attacker-controlled collector automatically on `npm install`. The package ships no legitimate functionality \u2014 the sole install-time effect is host/user identifier exfiltration. The scoped name `@uol-afiliados/*` mimics an internal organization namespace, consistent with dependency-confusion reconnaissance.\n",
  "id": "MAL-2026-16370",
  "modified": "2026-09-21T21:31:29Z",
  "published": "2026-09-21T21:31:29Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@uol-afiliados/affiliated-config-lib/v/102.0.0"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in @uol-afiliados/affiliated-config-lib (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.

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