{"answers":{"affected":"2 open source packages ship an affected version, including rack. It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-8161 in the wild and no public exploit code.","fix":"Upgrade rack to 2.1.3 or later.","what":"CVE-2020-8161 is a high-severity path traversal vulnerability in Canonical Ubuntu Linux, published on 2 Jul 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-2020-8161 and fix it if it is affected.\n\nWhat it is: CVE-2020-8161 is a high-severity path traversal vulnerability in Canonical Ubuntu Linux, published on 2 Jul 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-2020-8161 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- rack (RubyGems): affected all versions; fixed in 2.1.3\n- rack (RubyGems): affected all versions; fixed in 2.1.3\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-2020-8161/ (Markdown: https://insights.sbomify.com/CVE-2020-8161/index.md)","id":"CVE-2020-8161","markdown":"https://insights.sbomify.com/CVE-2020-8161/index.md","name":"CVE-2020-8161","record":{"aliases":["DEBIAN-CVE-2020-8161","DLA-2216-1","GHSA-5f9h-9pjv-v6j7","UBUNTU-CVE-2020-8161"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby web server library","requires_auth":"none","summary":"An attacker can exploit a directory traversal flaw in the Rack::Directory app to access unauthorized files and disclose sensitive information.","user_interaction":"not_required","vuln_class":"path_traversal"},"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":8.6,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"},{"id":"CWE-548","name":"Exposure of Information Through Directory Listing"}],"description":"A directory traversal vulnerability exists in rack \u003c 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.","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":"Directory traversal in Rack::Directory app bundled with Rack","id":"CVE-2020-8161","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux"],"type":"path_traversal","year":"2020"},"n_packages":2,"n_references":5,"next":{"headline":"Circumvention of file size limits in ActiveStorage","id":"CVE-2020-8162"},"packages":[{"ecosystem":"RubyGems","fixed":["2.1.3"],"introduced":["0"],"last_affected":[],"package":"rack","purl":null,"source":"GHSA-5f9h-9pjv-v6j7"},{"ecosystem":"RubyGems","fixed":["2.1.3"],"introduced":["0"],"last_affected":[],"package":"rack","purl":"pkg:gem/rack","source":"GHSA-5f9h-9pjv-v6j7"}],"prev":{"headline":"Cross-site scripting in MendixSSO","id":"CVE-2020-8160"},"products":["https://github.com/rack/rack"],"published":"2020-07-02","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":"An attacker can exploit a directory traversal flaw in the Rack::Directory app to access unauthorized files and disclose sensitive information.","url":"https://insights.sbomify.com/CVE-2020-8161/"}