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CVE-2016-6902

Status: ModifiedCritical (9.9)—

lshell 0.9.16 allows remote authenticated users to break out of a limited shell and execute arbitrary commands.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Lshell Project — Lshell

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2016-6902",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 9.9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "security@debian.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-04-24T19:59:00.330",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2016/08/22/17",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/92591",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=834949",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1369345",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "https://github.com/ghantoos/lshell/commit/a686f71732a3d0f16df52ef46ab8a49ee0083c68",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "https://github.com/ghantoos/lshell/issues/147",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2016/08/22/17",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/92591",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=834949",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1369345",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/ghantoos/lshell/commit/a686f71732a3d0f16df52ef46ab8a49ee0083c68",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/ghantoos/lshell/issues/147",
      "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-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "lshell 0.9.16 allows remote authenticated users to break out of a limited shell and execute arbitrary commands."
    },
    {
      "lang": "es",
      "value": "Ishell 0.9.16 permite a usuarios remotos autenticados salir de un shell limitado y ejecutar comandos arbitrarios."
    }
  ],
  "lastModified": "2026-06-17T00:51:57.930",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:lshell_project:lshell:0.9.16:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6EF0F461-1D41-493E-8F35-66E153E5CCCD"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@debian.org"
}