OESA-2021-1052 (CVE-2020-27216)

Vulnerability from osv_openeuler – Published: 2021-03-05 11:04 – Updated: 2026-08-06 11:04 – Source website
VLAI
Summary
jetty security update
Details

Jetty is a 100% Java HTTP Server and Servlet Container. This means that you do not need to configure and run a separate web server (like Apache) in order to use Java, servlets and JSPs to generate dynamic content. Jetty is a fully featured web server for static and dynamic content. Unlike separate server/container solutions, this means that your web server and web application run in the same process, without interconnection overheads and complications. Furthermore, as a pure java component, Jetty can be simply included in your application for demonstration, distribution or deployment. Jetty is available on all Java supported platforms.

Security Fix(es):

In Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru 10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems, the system's temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. If the attacker wins the race then they will have read and write permission to the subdirectory used to unpack web applications, including their WEB-INF/lib jar files and JSP files. If any code is ever executed out of this temporary directory, this can lead to a local privilege escalation vulnerability.(CVE-2020-27216)

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "noarch": [
          "jetty-maven-plugin-9.4.15-5.oe1.noarch.rpm",
          "jetty-io-9.4.15-5.oe1.noarch.rpm",
          "jetty-webapp-9.4.15-5.oe1.noarch.rpm",
          "jetty-ant-9.4.15-5.oe1.noarch.rpm",
          "jetty-websocket-server-9.4.15-5.oe1.noarch.rpm",
          "jetty-infinispan-9.4.15-5.oe1.noarch.rpm",
          "jetty-continuation-9.4.15-5.oe1.noarch.rpm",
          "jetty-jaas-9.4.15-5.oe1.noarch.rpm",
          "jetty-jspc-maven-plugin-9.4.15-5.oe1.noarch.rpm",
          "jetty-fcgi-server-9.4.15-5.oe1.noarch.rpm",
          "jetty-quickstart-9.4.15-5.oe1.noarch.rpm",
          "jetty-http2-client-9.4.15-5.oe1.noarch.rpm",
          "jetty-annotations-9.4.15-5.oe1.noarch.rpm",
          "jetty-osgi-boot-warurl-9.4.15-5.oe1.noarch.rpm",
          "jetty-cdi-9.4.15-5.oe1.noarch.rpm",
          "jetty-nosql-9.4.15-5.oe1.noarch.rpm",
          "jetty-osgi-alpn-9.4.15-5.oe1.noarch.rpm",
          "jetty-rewrite-9.4.15-5.oe1.noarch.rpm",
          "jetty-xml-9.4.15-5.oe1.noarch.rpm",
          "jetty-http-spi-9.4.15-5.oe1.noarch.rpm",
          "jetty-httpservice-9.4.15-5.oe1.noarch.rpm",
          "jetty-jndi-9.4.15-5.oe1.noarch.rpm",
          "jetty-start-9.4.15-5.oe1.noarch.rpm",
          "jetty-websocket-servlet-9.4.15-5.oe1.noarch.rpm",
          "jetty-deploy-9.4.15-5.oe1.noarch.rpm",
          "jetty-project-9.4.15-5.oe1.noarch.rpm",
          "jetty-websocket-client-9.4.15-5.oe1.noarch.rpm",
          "jetty-osgi-boot-9.4.15-5.oe1.noarch.rpm",
          "jetty-javax-websocket-client-impl-9.4.15-5.oe1.noarch.rpm",
          "jetty-9.4.15-5.oe1.noarch.rpm",
          "jetty-proxy-9.4.15-5.oe1.noarch.rpm",
          "jetty-util-9.4.15-5.oe1.noarch.rpm",
          "jetty-alpn-server-9.4.15-5.oe1.noarch.rpm",
          "jetty-http-9.4.15-5.oe1.noarch.rpm",
          "jetty-spring-9.4.15-5.oe1.noarch.rpm",
          "jetty-util-ajax-9.4.15-5.oe1.noarch.rpm",
          "jetty-fcgi-client-9.4.15-5.oe1.noarch.rpm",
          "jetty-javadoc-9.4.15-5.oe1.noarch.rpm",
          "jetty-unixsocket-9.4.15-5.oe1.noarch.rpm",
          "jetty-jmx-9.4.15-5.oe1.noarch.rpm",
          "jetty-http2-hpack-9.4.15-5.oe1.noarch.rpm",
          "jetty-jsp-9.4.15-5.oe1.noarch.rpm",
          "jetty-jstl-9.4.15-5.oe1.noarch.rpm",
          "jetty-server-9.4.15-5.oe1.noarch.rpm",
          "jetty-plus-9.4.15-5.oe1.noarch.rpm",
          "jetty-javax-websocket-server-impl-9.4.15-5.oe1.noarch.rpm",
          "jetty-servlet-9.4.15-5.oe1.noarch.rpm",
          "jetty-client-9.4.15-5.oe1.noarch.rpm",
          "jetty-servlets-9.4.15-5.oe1.noarch.rpm",
          "jetty-osgi-boot-jsp-9.4.15-5.oe1.noarch.rpm",
          "jetty-websocket-common-9.4.15-5.oe1.noarch.rpm",
          "jetty-http2-http-client-transport-9.4.15-5.oe1.noarch.rpm",
          "jetty-security-9.4.15-5.oe1.noarch.rpm",
          "jetty-http2-common-9.4.15-5.oe1.noarch.rpm",
          "jetty-websocket-api-9.4.15-5.oe1.noarch.rpm",
          "jetty-jaspi-9.4.15-5.oe1.noarch.rpm",
          "jetty-alpn-client-9.4.15-5.oe1.noarch.rpm",
          "jetty-http2-server-9.4.15-5.oe1.noarch.rpm"
        ],
        "src": [
          "jetty-9.4.15-5.oe1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "jetty",
        "purl": "pkg:rpm/openEuler/jetty\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.4.15-5.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Jetty is a 100% Java HTTP Server and Servlet Container. This means that you do not need to configure and run a separate web server (like Apache) in order to use Java, servlets and JSPs to generate dynamic content. Jetty is a fully featured web server for static and dynamic content. Unlike separate server/container solutions, this means that your web server and web application run in the same process, without interconnection overheads and complications. Furthermore, as a pure java component, Jetty can be simply included in your application for demonstration, distribution or deployment. Jetty is available on all Java supported platforms.\r\n\r\nSecurity Fix(es):\r\n\r\nIn Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru 10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems, the system\u0027s temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. If the attacker wins the race then they will have read and write permission to the subdirectory used to unpack web applications, including their WEB-INF/lib jar files and JSP files. If any code is ever executed out of this temporary directory, this can lead to a local privilege escalation vulnerability.(CVE-2020-27216)",
  "id": "OESA-2021-1052",
  "modified": "2026-08-06T11:04:17Z",
  "published": "2021-03-05T11:04:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1052"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27216"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jetty security update",
  "upstream": [
    "CVE-2020-27216"
  ]
}



Log in or create an account to share your comment.




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.


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.