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CVE-2021-20354 (GCVE-0-2021-20354)

Vulnerability from cvelistv5 – Published: 2021-02-18 15:10 – Updated: 2024-09-16 20:57
VLAI
Summary
IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.
Severity
5.9 (Medium)
CVSS:3.0/I:N/UI:N/A:N/AV:N/PR:N/AC:H/S:U/C:H/RL:O/RC:C/E:U
CWE
  • Obtain Information
Assigner
References
Impacted products
Vendor Product Version CPE status
IBM WebSphere Application Server Affected: 8.0
Affected: 8.5
Affected: 9.0
guessed Create a notification for this product.
Date Public
2021-02-17 00:00
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "current_release_date": "2026-03-27T15:02:58+00:00",
      "cve": "CVE-2021-20354",
      "id": "CVE-2021-20354",
      "initial_release_date": "2021-02-17T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-20354",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-20354.json",
      "version": "3"
    }
  }
}



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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

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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.
  • 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.


Detection rules are retrieved from Rulezet.


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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.