CVE-2023-40167 (GCVE-0-2023-40167)

Vulnerability from cvelistv5 – Published: 2023-09-15 19:37 – Updated: 2025-02-13 17:03
VLAI
Title
Jetty accepts "+" prefixed value in Content-Length
Summary
Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1, Jetty accepts the `+` character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses. There is no known exploit scenario, but it is conceivable that request smuggling could result if jetty is used in combination with a server that does not close the connection after sending such a 400 response. Versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1 contain a patch for this issue. There is no workaround as there is no known exploit scenario.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
Impacted products
Vendor Product Version
eclipse jetty.project Affected: >= 9.0.0, <= 9.4.51
Affected: >= 10.0.0, <= 10.0.15
Affected: >= 11.0.0, <= 11.0.15
Affected: = 12.0.0
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T21:30:26+00:00",
      "cve": "CVE-2023-40167",
      "id": "CVE-2023-40167",
      "initial_release_date": "2023-09-19T00:00:00+00:00",
      "product_status:fixed": "16",
      "product_status:known_affected": "48",
      "product_status:known_not_affected": "1950",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "jetty: Improper validation of HTTP/1 content-length",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-40167.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-07-16T01:03:31Z",
      "cve": "CVE-2023-40167",
      "id": "CVE-2023-40167",
      "initial_release_date": "2023-09-19T01:56:20Z",
      "product_status:known_affected": "8",
      "product_status:recommended": "357",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-40167",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-40167.json",
      "version": "14"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2023-40167\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T17:03:25.096Z\", \"dateReserved\": \"2023-08-09T15:26:41.051Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-09-15T19:37:37.530Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.