CVE-2024-1709 (GCVE-0-2024-1709)

Vulnerability from cvelistv5 – Published: 2024-02-21 15:36 – Updated: 2025-10-21 23:05
VLAI
Title
Authentication bypass using an alternate path or channel
Summary
ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel vulnerability, which may allow an attacker direct access to confidential information or critical systems.
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-24 05:00 UTC
CWE
  • CWE-288 - Authentication bypass using an alternate path or channel
Impacted products
Vendor Product Version
ConnectWise ScreenConnect Affected: 0 , ≤ 23.9.7 (custom)
Create a notification for this product.
connectwise screenconnect Affected: 0 , ≤ 23.9.7 (custom)
    cpe:2.3:a:connectwise:screenconnect:-:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:connectwise:screenconnect:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "screenconnect",
            "vendor": "connectwise",
            "versions": [
              {
                "lessThanOrEqual": "23.9.7",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-1709",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-24T05:00:21.568850Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2024-02-22",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:05:24.008Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2024-02-22T00:00:00.000Z",
            "value": "CVE-2024-1709 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T18:48:21.899Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/rapid7/metasploit-framework/pull/18870"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ScreenConnect",
          "vendor": "ConnectWise",
          "versions": [
            {
              "changes": [
                {
                  "at": "23.9.8",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "23.9.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel\n\n vulnerability, which may allow an attacker direct access to confidential information or \n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003ecritical systems.\u003c/span\u003e"
            }
          ],
          "value": "ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel\n\n vulnerability, which may allow an attacker direct access to confidential information or \n\ncritical systems."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-288",
              "description": "CWE-288 Authentication bypass using an alternate path or channel",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-21T18:25:45.687Z",
        "orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
        "shortName": "cisa-cg"
      },
      "references": [
        {
          "url": "https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8"
        },
        {
          "url": "https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8"
        },
        {
          "url": "https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2"
        },
        {
          "url": "https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/"
        },
        {
          "url": "https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc"
        },
        {
          "url": "https://github.com/rapid7/metasploit-framework/pull/18870"
        },
        {
          "url": "https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/"
        },
        {
          "url": "https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/"
        },
        {
          "url": "https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/"
        },
        {
          "url": "https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Authentication bypass using an alternate path or channel",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
    "assignerShortName": "cisa-cg",
    "cveId": "CVE-2024-1709",
    "datePublished": "2024-02-21T15:36:03.960Z",
    "dateReserved": "2024-02-21T15:05:07.113Z",
    "dateUpdated": "2025-10-21T23:05:24.008Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-1709",
      "date": "2026-10-03",
      "epss": "0.9998",
      "percentile": "0.99981"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-01T18:48:21.899Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/rapid7/metasploit-framework/pull/18870"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:a:connectwise:screenconnect:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "product": "screenconnect",
                "vendor": "connectwise",
                "versions": [
                  {
                    "lessThanOrEqual": "23.9.7",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-1709",
                    "options": [
                      {
                        "Exploitation": "active"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-02-24T05:00:21.568850Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              },
              {
                "other": {
                  "content": {
                    "dateAdded": "2024-02-22",
                    "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709"
                  },
                  "type": "kev"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-06-14T16:47:10.126Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "timeline": [
              {
                "lang": "en",
                "time": "2024-02-22T00:00:00+00:00",
                "value": "CVE-2024-1709 added to CISA KEV"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "ScreenConnect",
              "vendor": "ConnectWise",
              "versions": [
                {
                  "changes": [
                    {
                      "at": "23.9.8",
                      "status": "unaffected"
                    }
                  ],
                  "lessThanOrEqual": "23.9.7",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel\n\n vulnerability, which may allow an attacker direct access to confidential information or \n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003ecritical systems.\u003c/span\u003e\n\n"
                }
              ],
              "value": "ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel\n\n vulnerability, which may allow an attacker direct access to confidential information or \n\ncritical systems.\n\n"
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 10,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-288",
                  "description": "CWE-288 Authentication bypass using an alternate path or channel",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-02-21T18:25:45.687Z",
            "orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
            "shortName": "cisa-cg"
          },
          "references": [
            {
              "url": "https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8"
            },
            {
              "url": "https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8"
            },
            {
              "url": "https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2"
            },
            {
              "url": "https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/"
            },
            {
              "url": "https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc"
            },
            {
              "url": "https://github.com/rapid7/metasploit-framework/pull/18870"
            },
            {
              "url": "https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/"
            },
            {
              "url": "https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/"
            },
            {
              "url": "https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/"
            },
            {
              "url": "https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Authentication bypass using an alternate path or channel",
          "x_generator": {
            "engine": "Vulnogram 0.1.0-dev"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
        "assignerShortName": "cisa-cg",
        "cveId": "CVE-2024-1709",
        "datePublished": "2024-02-21T15:36:03.960Z",
        "dateReserved": "2024-02-21T15:05:07.113Z",
        "dateUpdated": "2025-07-28T19:43:28.229Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…