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CVE-2015-3887

Estado: ModificadaAlta (7.8)—

Untrusted search path vulnerability in ProxyChains-NG before 4.9 allows local users to gain privileges via a Trojan horse libproxychains4.so library in the current working directory, which is referenced in the LD_PRELOAD path.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Proxychains-ng Project — Proxychains-ng

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2015-3887",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-09-21T16:29:00.177",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/05/13/11",
      "tags": [
        "Issue Tracking",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/74648",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1147013",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/rofl0r/proxychains-ng/blob/v4.9/README#L56",
      "tags": [
        "Issue Tracking",
        "Release Notes"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/rofl0r/proxychains-ng/commit/9ab7dbeb3baff67a51d0c5e71465c453be0890b5#diff-803c5170888b8642f2a97e5e9423d399",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/rofl0r/proxychains-ng/issues/60",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/05/13/11",
      "tags": [
        "Issue Tracking",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/74648",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1147013",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/rofl0r/proxychains-ng/blob/v4.9/README#L56",
      "tags": [
        "Issue Tracking",
        "Release Notes"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/rofl0r/proxychains-ng/commit/9ab7dbeb3baff67a51d0c5e71465c453be0890b5#diff-803c5170888b8642f2a97e5e9423d399",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/rofl0r/proxychains-ng/issues/60",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted search path vulnerability in ProxyChains-NG before 4.9 allows local users to gain privileges via a Trojan horse libproxychains4.so library in the current working directory, which is referenced in the LD_PRELOAD path."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo ruta de búsqueda no confiable en ProxyChains-NG en versiones anteriores a la 4.9 permite que los usuarios locales obtengan privilegios mediante una biblioteca troyana libproxychains4.so en el directorio de trabajo actual, que se referencia en la ruta LD_PRELOAD."
    }
  ],
  "lastModified": "2026-06-17T00:26:27.677",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:proxychains-ng_project:proxychains-ng:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "25FF389B-4FCC-40E2-BF65-FC942B85E9AE",
              "versionEndIncluding": "4.8.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}