CVE-2020-1757 (GCVE-0-2020-1757)

Vulnerability from cvelistv5 – Published: 2020-04-21 15:31 – Updated: 2024-08-04 06:46
VLAI
Summary
A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass.
Severity
8.1 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat undertow Affected: all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1
Affected: all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final
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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T11:56:16+00:00",
      "cve": "CVE-2020-1757",
      "id": "CVE-2020-1757",
      "initial_release_date": "2020-01-01T00:00:00+00:00",
      "product_status:fixed": "1404",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "22",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "undertow: servletPath is normalized incorrectly leading to dangerous application mapping which could result in security bypass",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-1757.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.