{"answers":{"affected":"2 open source packages ship an affected version, including io.undertow:undertow-core. It affects 6 products.","exploited":"There is no known exploitation of CVE-2020-1757 in the wild and no public exploit code.","fix":"Upgrade io.undertow:undertow-core to 2.1.0 or later.","what":"CVE-2020-1757 is a high-severity vulnerability in Redhat Jboss Enterprise Application Platform, published on 21 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-1757 and fix it if it is affected.\n\nWhat it is: CVE-2020-1757 is a high-severity vulnerability in Redhat Jboss Enterprise Application Platform, published on 21 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-1757 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- io.undertow:undertow-core (Maven): affected all versions; fixed in 2.1.0\n- io.undertow:undertow-core (Maven): affected all versions; fixed in 2.1.0\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-2020-1757/ (Markdown: https://insights.sbomify.com/CVE-2020-1757/index.md)","id":"CVE-2020-1757","markdown":"https://insights.sbomify.com/CVE-2020-1757/index.md","name":"CVE-2020-1757","record":{"aliases":["DEBIAN-CVE-2020-1757","GHSA-2w73-fqqj-c92p","UBUNTU-CVE-2020-1757"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Undertow Servlet Container","requires_auth":"low_privilege","summary":"Attackers can bypass security controls in Undertow by exploiting incorrect servlet path normalization involving semicolons.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"jboss_data_grid","vendor":"redhat"},{"product":"jboss_enterprise_application_platform","vendor":"redhat"},{"product":"jboss_fuse","vendor":"redhat"},{"product":"openshift_application_runtimes","vendor":"redhat"},{"product":"single_sign-on","vendor":"redhat"},{"product":"undertow","vendor":"redhat"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass.","ecosystems":["Maven"],"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":"Improper Input Validation in Undertow","id":"CVE-2020-1757","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"redhat:jboss_enterprise_application_platform","products":["redhat:jboss_enterprise_application_platform","redhat:single_sign-on"],"type":"security_feature_bypass","year":"2020"},"n_packages":2,"n_references":1,"next":{"headline":"Improper Certificate Validation and Improper Validation of Certificate with Host Mismatch in Keycloak","id":"CVE-2020-1758"},"packages":[{"ecosystem":"Maven","fixed":["2.1.0"],"introduced":["0"],"last_affected":[],"package":"io.undertow:undertow-core","purl":null,"source":"GHSA-2w73-fqqj-c92p"},{"ecosystem":"Maven","fixed":["2.1.0"],"introduced":["0"],"last_affected":[],"package":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","source":"GHSA-2w73-fqqj-c92p"}],"prev":{"headline":"Cross-site scripting in Moodle","id":"CVE-2020-1756"},"products":["undertow"],"published":"2020-04-21","related":[{"cvss_score":7.4,"headline":"Inadequate Encryption Strength and Algorithm Downgrade in Wildfly","id":"CVE-2019-14887","kev_date_added":null,"published":"2020-03-16"},{"cvss_score":5.3,"headline":"Other in JBoss Enterprise Application Platform","id":"CVE-2020-1710","kev_date_added":null,"published":"2020-09-16"}],"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":"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":["Red Hat"]},"summary":"Attackers can bypass security controls in Undertow by exploiting incorrect servlet path normalization involving semicolons.","url":"https://insights.sbomify.com/CVE-2020-1757/"}