CVE-2025-55013 (GCVE-0-2025-55013)

Vulnerability from cvelistv5 – Published: 2025-08-09 02:02 – Updated: 2025-08-12 13:26
VLAI
Title
Assemblyline 4 Service Client: Arbitrary Write through path traversal in Client code
Summary
The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138.
Severity
4.2 (Medium)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-11 14:07 UTC
CWE
  • CWE-23 - Relative Path Traversal
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7763 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
CybercentreCanada assemblyline Affected: < 4.6.1.dev138
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-55013",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-11T14:07:26.606408Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-11T14:07:39.454Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "assemblyline",
          "vendor": "CybercentreCanada",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.6.1.dev138"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-23",
              "description": "CWE-23: Relative Path Traversal",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-12T13:26:26.900Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/CybercentreCanada/assemblyline/security/advisories/GHSA-75jv-vfxf-3865",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/CybercentreCanada/assemblyline/security/advisories/GHSA-75jv-vfxf-3865"
        },
        {
          "name": "https://github.com/CybercentreCanada/assemblyline-service-client/commit/351414e7e96cc1f5640ae71ae51b939e8ba30900",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/CybercentreCanada/assemblyline-service-client/commit/351414e7e96cc1f5640ae71ae51b939e8ba30900"
        }
      ],
      "source": {
        "advisory": "GHSA-75jv-vfxf-3865",
        "discovery": "UNKNOWN"
      },
      "title": "Assemblyline 4 Service Client: Arbitrary Write through path traversal in Client code"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-55013",
    "datePublished": "2025-08-09T02:02:23.602Z",
    "dateReserved": "2025-08-04T17:34:24.422Z",
    "dateUpdated": "2025-08-12T13:26:26.900Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-55013",
      "date": "2026-11-12",
      "epss": "0.00666",
      "percentile": "0.52316"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "assemblyline",
                "vendor": "CybercentreCanada",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 4.6.1.dev138"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138."
          },
          {
            "lang": "es",
            "value": "Assemblyline 4 Service Client interact\u00faa con la API para obtener tareas y publicar el resultado de un servicio en Assemblyline 4. En versiones anteriores a la 4.6.1.dev138, el cliente de servicio de Assemblyline 4 (task_handler.py) acepta un valor SHA-256 devuelto por el servidor de servicio y lo usa directamente como nombre de archivo local. Un servidor malicioso o comprometido (o cualquier MITM que pueda comunicarse con el cliente) puede devolver un payload de path traversal como `../../../etc/cron.d/evil` y obligar al cliente a escribir los bytes descargados en una ubicaci\u00f3n arbitraria del disco. Esto se solucion\u00f3 en la versi\u00f3n 4.6.1.dev138."
          }
        ],
        "id": "CVE-2025-55013",
        "lastModified": "2026-06-17T09:41:06.903",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 4.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 1.6,
              "impactScore": 2.5,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-55013",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-11T14:07:26.606408Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-08-09T03:15:47.620",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/CybercentreCanada/assemblyline-service-client/commit/351414e7e96cc1f5640ae71ae51b939e8ba30900"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/CybercentreCanada/assemblyline/security/advisories/GHSA-75jv-vfxf-3865"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-23"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-08-11T02:30:35+00:00",
      "cve": "CVE-2025-55013",
      "id": "CVE-2025-55013",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Assemblyline 4 Service Client: Arbitrary Write through path traversal in Client code",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-55013.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-55013",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-08-11T14:07:26.606408Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-08-11T14:07:30.497Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "assemblyline",
              "vendor": "CybercentreCanada",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 4.6.1.dev138"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "HIGH",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 4.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-23",
                  "description": "CWE-23: Relative Path Traversal",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-08-12T13:26:26.900Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/CybercentreCanada/assemblyline/security/advisories/GHSA-75jv-vfxf-3865",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/CybercentreCanada/assemblyline/security/advisories/GHSA-75jv-vfxf-3865"
            },
            {
              "name": "https://github.com/CybercentreCanada/assemblyline-service-client/commit/351414e7e96cc1f5640ae71ae51b939e8ba30900",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/CybercentreCanada/assemblyline-service-client/commit/351414e7e96cc1f5640ae71ae51b939e8ba30900"
            }
          ],
          "source": {
            "advisory": "GHSA-75jv-vfxf-3865",
            "discovery": "UNKNOWN"
          },
          "title": "Assemblyline 4 Service Client: Arbitrary Write through path traversal in Client code"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2025-55013",
        "datePublished": "2025-08-09T02:02:23.602Z",
        "dateReserved": "2025-08-04T17:34:24.422Z",
        "dateUpdated": "2025-08-12T13:26:26.900Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    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.