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CVE-2017-15906 (GCVE-0-2017-15906)

Vulnerability from cvelistv5 – Published: 2017-10-26 00:00 – Updated: 2026-05-28 17:56
VLAI
Summary
The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-28 17:55 UTC
CWE
  • n/a
  • CWE-732 - Incorrect Permission Assignment for Critical Resource
Date Public
2017-10-25 00:00
Show details on NVD website

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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-05-28T21:12:33+00:00",
      "cve": "CVE-2017-15906",
      "id": "CVE-2017-15906",
      "initial_release_date": "2017-10-03T00:00:00+00:00",
      "product_status:fixed": "570",
      "product_status:known_not_affected": "8",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openssh: Improper write operations in readonly mode allow for zero-length file creation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-15906.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-16T00:21:45Z",
      "cve": "CVE-2017-15906",
      "id": "CVE-2017-15906",
      "initial_release_date": "2023-02-15T04:37:45Z",
      "product_status:known_affected": "18",
      "product_status:known_not_affected": "137",
      "product_status:recommended": "93",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-15906",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-15906.json",
      "version": "23"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2017-15906\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-28T17:56:04.112Z\", \"dateReserved\": \"2017-10-25T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2017-10-26T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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