{"answers":{"affected":"4 open source packages ship an affected version, including rack. It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-8184 in the wild and no public exploit code.","fix":"Upgrade rack to a fixed version for your release line: 2.1.4 or 2.2.3.","what":"CVE-2020-8184 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 19 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8184 and fix it if it is affected.\n\nWhat it is: CVE-2020-8184 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 19 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8184 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- rack (RubyGems): affected all versions; fixed in 2.1.4\n- rack (RubyGems): affected all versions; fixed in 2.1.4\n- rack (RubyGems): affected from 2.2.0; fixed in 2.2.3\n- rack (RubyGems): affected from 2.2.0; fixed in 2.2.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-8184/ (Markdown: https://insights.sbomify.com/CVE-2020-8184/index.md)","id":"CVE-2020-8184","markdown":"https://insights.sbomify.com/CVE-2020-8184/index.md","name":"CVE-2020-8184","record":{"aliases":["DEBIAN-CVE-2020-8184","GHSA-j6w9-fv6q-3q52","MGASA-2020-0306","UBUNTU-CVE-2020-8184"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby web server library","requires_auth":"none","summary":"Attackers can forge secure or host-only cookie prefixes in Rack, bypassing intended security restrictions on cookie handling.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"rack","vendor":"rack_project"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"},{"id":"CWE-784","name":"Reliance on Cookies without Validation and Integrity Checking in a Security Decision"}],"description":"A reliance on cookies without validation/integrity check security vulnerability exists in rack \u003c 2.2.3, rack \u003c 2.1.4 that makes it is possible for an attacker to forge a secure or host-only cookie prefix.","ecosystems":["RubyGems"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Rack allows Percent-encoded cookies to overwrite existing prefixed cookie names","id":"CVE-2020-8184","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux"],"type":"security_feature_bypass","year":"2020"},"n_packages":4,"n_references":5,"next":{"headline":"Untrusted users can run pending migrations in production in Rails","id":"CVE-2020-8185"},"packages":[{"ecosystem":"RubyGems","fixed":["2.1.4"],"introduced":["0"],"last_affected":[],"package":"rack","purl":null,"source":"GHSA-j6w9-fv6q-3q52"},{"ecosystem":"RubyGems","fixed":["2.1.4"],"introduced":["0"],"last_affected":[],"package":"rack","purl":"pkg:gem/rack","source":"GHSA-j6w9-fv6q-3q52"},{"ecosystem":"RubyGems","fixed":["2.2.3"],"introduced":["2.2.0"],"last_affected":[],"package":"rack","purl":null,"source":"GHSA-j6w9-fv6q-3q52"},{"ecosystem":"RubyGems","fixed":["2.2.3"],"introduced":["2.2.0"],"last_affected":[],"package":"rack","purl":"pkg:gem/rack","source":"GHSA-j6w9-fv6q-3q52"}],"prev":{"headline":"Information disclosure in Nextcloud Server","id":"CVE-2020-8183"},"products":["https://github.com/rack/rack"],"published":"2020-06-19","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can forge secure or host-only cookie prefixes in Rack, bypassing intended security restrictions on cookie handling.","url":"https://insights.sbomify.com/CVE-2020-8184/"}