{"answers":{"affected":"14 open source packages ship an affected version, including org.bouncycastle:bcprov-ext-jdk15on, org.bouncycastle:bcprov-ext-jdk16 and org.bouncycastle:bcprov-jdk14. It affects 20 products.","exploited":"There is no known exploitation of CVE-2020-28052 in the wild and no public exploit code.","fix":"Upgrade org.bouncycastle:bcprov-ext-jdk15on to 1.67 or later.","what":"CVE-2020-28052 is a high-severity authentication bypass vulnerability in Bouncycastle Bc-Java, published on 18 Dec 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-2020-28052 and fix it if it is affected.\n\nWhat it is: CVE-2020-28052 is a high-severity authentication bypass vulnerability in Bouncycastle Bc-Java, published on 18 Dec 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-2020-28052 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.bouncycastle:bcprov-ext-jdk15on (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-ext-jdk15on (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-ext-jdk16 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-ext-jdk16 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk14 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk14 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk15 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk15 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk15on (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk15on (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk15to18 (Maven): affected from 1.65; fixed in 1.67\n- org.bouncycastle:bcprov-jdk15to18 (Maven): affected from 1.65; fixed in 1.67\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-2020-28052/ (Markdown: https://insights.sbomify.com/CVE-2020-28052/index.md)","id":"CVE-2020-28052","markdown":"https://insights.sbomify.com/CVE-2020-28052/index.md","name":"CVE-2020-28052","record":{"aliases":["DEBIAN-CVE-2020-28052","GHSA-73xv-w5gp-frxh"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Java cryptography library","requires_auth":"none","summary":"The Bouncy Castle Java library incorrectly validates passwords, allowing attackers to bypass authentication using incorrect credentials.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"karaf","vendor":"apache"},{"product":"bc-java","vendor":"bouncycastle"},{"product":"banking_corporate_lending_process_management","vendor":"oracle"},{"product":"banking_credit_facilities_process_management","vendor":"oracle"},{"product":"banking_extensibility_workbench","vendor":"oracle"},{"product":"banking_supply_chain_finance","vendor":"oracle"},{"product":"banking_virtual_account_management","vendor":"oracle"},{"product":"blockchain_platform","vendor":"oracle"},{"product":"commerce_guided_search","vendor":"oracle"},{"product":"communications_application_session_controller","vendor":"oracle"},{"product":"communications_cloud_native_core_network_slice_selection_function","vendor":"oracle"},{"product":"communications_convergence","vendor":"oracle"},{"product":"communications_messaging_server","vendor":"oracle"},{"product":"communications_pricing_design_center","vendor":"oracle"},{"product":"communications_session_report_manager","vendor":"oracle"},{"product":"communications_session_route_manager","vendor":"oracle"},{"product":"jd_edwards_enterpriseone_tools","vendor":"oracle"},{"product":"peoplesoft_enterprise_peopletools","vendor":"oracle"},{"product":"utilities_framework","vendor":"oracle"},{"product":"webcenter_portal","vendor":"oracle"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2020-12-19","github_poc":2,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-12-19T22:22:45Z","kind":"github_poc","ref":"https://github.com/madstap/bouncy-castle-generative-test-poc","stars":0,"title":"A generative test that would've caught CVE-2020-28052"},{"date":"2021-01-04T17:13:39Z","kind":"github_poc","ref":"https://github.com/kurenaif/CVE-2020-28052_PoC","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Logic error in Legion of the Bouncy Castle BC Java","id":"CVE-2020-28052","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"bouncycastle:bc-java","products":["bouncycastle:bc-java","oracle:commerce_guided_search","oracle:communications_session_report_manager","oracle:communications_session_route_manager","oracle:jd_edwards_enterpriseone_tools","oracle:peoplesoft_enterprise_peopletools","oracle:webcenter_portal"],"type":"auth_bypass","year":"2020"},"n_packages":14,"n_references":26,"next":{"headline":"Privilege Escalation in HashiCorp Consul","id":"CVE-2020-28053"},"packages":[{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-ext-jdk15on","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-ext-jdk15on","purl":"pkg:maven/org.bouncycastle/bcprov-ext-jdk15on","source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-ext-jdk16","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-ext-jdk16","purl":"pkg:maven/org.bouncycastle/bcprov-ext-jdk16","source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk14","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk14","purl":"pkg:maven/org.bouncycastle/bcprov-jdk14","source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15","source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15on","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15on","source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15to18","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15to18","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15to18","source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk16","purl":null,"source":"GHSA-73xv-w5gp-frxh"},{"ecosystem":"Maven","fixed":["1.67"],"introduced":["1.65"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk16","purl":"pkg:maven/org.bouncycastle/bcprov-jdk16","source":"GHSA-73xv-w5gp-frxh"}],"prev":{"headline":"Auth bypass in n/a","id":"CVE-2020-28050"},"products":["n/a"],"published":"2020-12-18","related":[{"cvss_score":9.8,"headline":"Apache Karaf: Path Traversal in Config Service Allows Manager-to-Admin Privilege Escalation","id":"CVE-2026-91012","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":9.8,"headline":"Missing authorization in Apache Karaf","id":"CVE-2026-91048","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":9.8,"headline":"Apache Karaf: JDBC JAAS LDAP injection","id":"CVE-2022-40145","kev_date_added":null,"published":"2022-12-21"},{"cvss_score":9.8,"headline":"XML External Entity Reference in Apache Karaf","id":"CVE-2018-11788","kev_date_added":null,"published":"2019-01-07"},{"cvss_score":8.8,"headline":"Apache Karaf: Authorization bypass in JMX MBean lifecycle operations","id":"CVE-2026-92142","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.8,"headline":"Apache Karaf: OS Command Injection in Child-Instance Launch (instance:* / InstancesMBean)","id":"CVE-2026-91006","kev_date_added":null,"published":"2026-09-28"},{"cvss_score":8.8,"headline":"Improper Privilege Management in Apache Karaf","id":"CVE-2018-11786","kev_date_added":null,"published":"2018-09-18"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"The Bouncy Castle Java library incorrectly validates passwords, allowing attackers to bypass authentication using incorrect credentials.","url":"https://insights.sbomify.com/CVE-2020-28052/"}