{"answers":{"affected":"3 open source packages ship an affected version, including bottle. It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-28473 in the wild and no public exploit code.","fix":"Upgrade bottle to 0.12.19 or later.","what":"CVE-2020-28473 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-28473 and fix it if it is affected.\n\nWhat it is: CVE-2020-28473 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-28473 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- bottle (PyPI): affected all versions; fixed in 0.12.19\n- bottle (PyPI): affected all versions; fixed in 0.12.19\n- bottle (PyPI): affected all versions; fixed in 0.12.19\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-2020-28473/ (Markdown: https://insights.sbomify.com/CVE-2020-28473/index.md)","id":"CVE-2020-28473","markdown":"https://insights.sbomify.com/CVE-2020-28473/index.md","name":"CVE-2020-28473","record":{"aliases":["DEBIAN-CVE-2020-28473","DLA-2531-1","GHSA-qhx9-7hx7-cp4r","MGASA-2021-0171","OESA-2021-1067","PYSEC-2021-129","SNYK-PYTHON-BOTTLE-1017108","SUSE-SU-2021:0483-1","UBUNTU-CVE-2020-28473","USN-5105-1","openSUSE-SU-2021:0302-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Python web framework","requires_auth":"none","summary":"Attackers can poison web caches via parameter cloaking in the Bottle framework, causing malicious responses to be served to other users.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"bottle","vendor":"bottlepy"},{"product":"debian_linux","vendor":"debian"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.","ecosystems":["PyPI","SUSE:Linux Enterprise Module for Desktop Applications 15 SP2","SUSE:Linux Enterprise Module for Python 2 15 SP2","openSUSE:Leap 15.2"],"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":"Web Cache Poisoning","id":"CVE-2020-28473","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"other","year":"2020"},"n_packages":6,"n_references":4,"next":{"headline":"Prototype Pollution","id":"CVE-2020-28477"},"packages":[{"ecosystem":"PyPI","fixed":["0.12.19"],"introduced":["0"],"last_affected":[],"package":"bottle","purl":null,"source":"GHSA-qhx9-7hx7-cp4r"},{"ecosystem":"PyPI","fixed":["0.12.19"],"introduced":["0"],"last_affected":[],"package":"bottle","purl":"pkg:pypi/bottle","source":"GHSA-qhx9-7hx7-cp4r"},{"ecosystem":"PyPI","fixed":["0.12.19"],"introduced":["0"],"last_affected":[],"package":"bottle","purl":"pkg:pypi/bottle","source":"PYSEC-2021-129"},{"ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15 SP2","fixed":["0.12.13-3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-bottle","purl":"pkg:rpm/suse/python-bottle\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2","source":"SUSE-SU-2021:0483-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Python 2 15 SP2","fixed":["0.12.13-3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-bottle","purl":"pkg:rpm/suse/python-bottle\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%202%2015%20SP2","source":"SUSE-SU-2021:0483-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["0.12.13-lp152.4.3.1"],"introduced":["0"],"last_affected":[],"package":"python-bottle","purl":"pkg:rpm/opensuse/python-bottle\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0302-1"}],"prev":{"headline":"Prototype Pollution","id":"CVE-2020-28472"},"products":["bottle"],"published":"2021-01-18","related":[{"cvss_score":9.8,"headline":"Denial of service in bottle","id":"CVE-2022-31799","kev_date_added":null,"published":"2022-05-29"},{"cvss_score":6.8,"headline":"Bottle does not properly limit content-types","id":"CVE-2014-3137","kev_date_added":null,"published":"2014-10-25"},{"cvss_score":6.5,"headline":"bottle.py vulnerable to CRLF Injection","id":"CVE-2016-9964","kev_date_added":null,"published":"2016-12-16"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2024-09-16","vendors":["n/a"]},"summary":"Attackers can poison web caches via parameter cloaking in the Bottle framework, causing malicious responses to be served to other users.","url":"https://insights.sbomify.com/CVE-2020-28473/"}