« Back to list

CVE-2020-8260

Status: AnalyzedHigh (7.2)⚠ Active exploitation

A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary code execution using uncontrolled gzip extraction.

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).

CISA KEV — actively exploited

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Vulnerabilidad en interfaz web de servicio remoto (Pulse Connect Secure) con AV:N y PR:H permite ejecución de código arbitrario tras autenticación, instalando web shell y ejecutando comandos.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Affected technologies (1)

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2020-8260",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-8260",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-02-07T12:32:53.557074Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Pulse Connect Secure / Pulse Policy Secure",
          "versions": [
            {
              "status": "affected",
              "version": "9.1R9"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-10-28T13:15:13.027",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/160619/Pulse-Secure-VPN-Remote-Code-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "http://packetstormsecurity.com/files/160619/Pulse-Secure-VPN-Remote-Code-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8260",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary code execution using uncontrolled gzip extraction."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la interfaz web de administración en Pulse Connect Secure versiones anteriores a 9.1R9, podría permitir a un atacante autenticado llevar a cabo una ejecución de código arbitraria usando una extracción gzip no controlada"
    }
  ],
  "lastModified": "2026-06-17T03:26:09.063",
  "cisaActionDue": "2022-05-03",
  "cisaExploitAdd": "2021-11-03",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "87FBC6AD-0A70-4626-A152-E49BECF9F7AF",
              "versionEndIncluding": "9.0"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4F450898-0B06-4073-9B76-BF22F68BD14F"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r1.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "130C8955-BDA4-4518-8EBA-740EB08FC3E4"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r2.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4E2D041D-9BDD-416D-B658-1C517C854104"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r3.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7155EB34-E8E0-49AF-BDA2-FB4BFA44662E"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r4.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "25EE614A-5F32-4CA9-998A-4FAF16DC100C"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D5355372-03EA-46D7-9104-A2785C29B664"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3DE32A0C-8944-4F51-A286-266055CA4B2F"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0349A0CC-A372-4E51-899E-D7BA67876F4B"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r5.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F49EE829-A2CD-491E-BFC3-7888491D7C58"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r6.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2254DDF1-7FF3-49E1-8826-91F49A6794F8"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r7.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B8EA4DA8-CD09-41AC-ADCB-27CF771C016B"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r8.0:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4D6CECCB-18BA-4219-95A2-2525A2BDCE36"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r8.1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BFFA0B02-7F6D-4434-B1E7-EB8520FD68A0"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r8.2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DFE8FA87-9622-4D5B-99C7-D8EE230C0AA9"
            },
            {
              "criteria": "cpe:2.3:a:ivanti:connect_secure:9.1:r8.4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "07AB853D-5A3F-4142-8417-1C9FB729A89E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Ivanti Pulse Connect Secure Code Execution Vulnerability"
}