FKIE_CVE-2015-7755

Vulnerability from fkie_nvd - Published: 2015-12-19 14:59 - Updated: 2026-04-21 16:27
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0r14b, 6.3.0r15 before 6.3.0r15b, 6.3.0r16 before 6.3.0r16b, 6.3.0r17 before 6.3.0r17b, 6.3.0r18 before 6.3.0r18b, 6.3.0r19 before 6.3.0r19b, and 6.3.0r20 before 6.3.0r21 allows remote attackers to obtain administrative access by entering an unspecified password during a (1) SSH or (2) TELNET session.
References
cve@mitre.orghttp://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/Third Party Advisory
cve@mitre.orghttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10713Exploit, Vendor Advisory
cve@mitre.orghttp://twitter.com/cryptoron/statuses/677900647560253442Broken Link
cve@mitre.orghttp://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/Permissions Required
cve@mitre.orghttp://www.kb.cert.org/vuls/id/640184Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/79626Broken Link
cve@mitre.orghttp://www.securitytracker.com/id/1034489Broken Link
cve@mitre.orghttp://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/Third Party Advisory
cve@mitre.orghttps://adamcaudill.com/2015/12/17/much-ado-about-juniper/Third Party Advisory
cve@mitre.orghttps://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554Vendor Advisory
cve@mitre.orghttps://github.com/hdm/juniper-cve-2015-7755Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10713Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://twitter.com/cryptoron/statuses/677900647560253442Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/Permissions Required
af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/640184Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/79626Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034489Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://adamcaudill.com/2015/12/17/much-ado-about-juniper/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/hdm/juniper-cve-2015-7755Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-7755US Government Resource
Impacted products
Vendor Product Version
juniper screenos 6.3.0
juniper screenos 6.3.0
juniper screenos 6.3.0
juniper screenos 6.3.0
To clipboard 

{
  "cisaActionDue": "2025-10-23",
  "cisaExploitAdd": "2025-10-02",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Juniper ScreenOS Improper Authentication Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:juniper:screenos:6.3.0:r17:*:*:*:*:*:*",
              "matchCriteriaId": "9323A380-A99C-4B35-B379-51A57CF17678",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:screenos:6.3.0:r18:*:*:*:*:*:*",
              "matchCriteriaId": "5B6F2143-1B00-4F3D-9454-24A80D9C88FB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:screenos:6.3.0:r19:*:*:*:*:*:*",
              "matchCriteriaId": "29AF89BB-010B-4E95-8E80-69749BDF4211",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:screenos:6.3.0:r20:*:*:*:*:*:*",
              "matchCriteriaId": "1D1377D2-A31B-4081-890F-8955D86E50C1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0r14b, 6.3.0r15 before 6.3.0r15b, 6.3.0r16 before 6.3.0r16b, 6.3.0r17 before 6.3.0r17b, 6.3.0r18 before 6.3.0r18b, 6.3.0r19 before 6.3.0r19b, and 6.3.0r20 before 6.3.0r21 allows remote attackers to obtain administrative access by entering an unspecified password during a (1) SSH or (2) TELNET session."
    },
    {
      "lang": "es",
      "value": "Juniper ScreenOS 6.2.0r15 hasta la versi\u00f3n 6.2.0r18, 6.3.0r12 en versiones anteriores a 6.3.0r12b, 6.3.0r13 en versiones anteriores a 6.3.0r13b, 6.3.0r14 en versiones anteriores a 6.3.0r14b, 6.3.0r15 en versiones anteriores a 6.3.0r15b, 6.3.0r16 en versiones anteriores a 6.3.0r16b, 6.3.0r17 en versiones anteriores a 6.3.0r17b, 6.3.0r18 en versiones anteriores a 6.3.0r18b, 6.3.0r19 en versiones anteriores a 6.3.0r19b y 6.3.0r20 en versiones anteriores a 6.3.0r21 permite a atacantes remotos obtener acceso administrativo entrando una contrase\u00f1a no especificada durante una sesi\u00f3n (1) SSH o (2) TELNET."
    }
  ],
  "id": "CVE-2015-7755",
  "lastModified": "2026-04-21T16:27:21.830",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2015-12-19T14:59:01.453",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10713"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://twitter.com/cryptoron/statuses/677900647560253442"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Permissions Required"
      ],
      "url": "http://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.kb.cert.org/vuls/id/640184"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.securityfocus.com/bid/79626"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.securitytracker.com/id/1034489"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://adamcaudill.com/2015/12/17/much-ado-about-juniper/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/hdm/juniper-cve-2015-7755"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10713"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://twitter.com/cryptoron/statuses/677900647560253442"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required"
      ],
      "url": "http://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.kb.cert.org/vuls/id/640184"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.securityfocus.com/bid/79626"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.securitytracker.com/id/1034489"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://adamcaudill.com/2015/12/17/much-ado-about-juniper/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/hdm/juniper-cve-2015-7755"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-7755"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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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.
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