{"answers":{"affected":"6 open source packages ship an affected version, including org.jenkins-ci.plugins:mailer. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-2252 in the wild and no public exploit code.","fix":"Upgrade org.jenkins-ci.plugins:mailer to a fixed version for your release line: 1.29.1, 1.31.1 or 1.32.1.","what":"CVE-2020-2252 is a medium-severity server-side request forgery vulnerability in Jenkins Mailer Plugin, published on 16 Sep 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-2020-2252 and fix it if it is affected.\n\nWhat it is: CVE-2020-2252 is a medium-severity server-side request forgery vulnerability in Jenkins Mailer Plugin, published on 16 Sep 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-2020-2252 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.jenkins-ci.plugins:mailer (Maven): affected all versions; fixed in 1.29.1\n- org.jenkins-ci.plugins:mailer (Maven): affected all versions; fixed in 1.29.1\n- org.jenkins-ci.plugins:mailer (Maven): affected from 1.30; fixed in 1.31.1\n- org.jenkins-ci.plugins:mailer (Maven): affected from 1.30; fixed in 1.31.1\n- org.jenkins-ci.plugins:mailer (Maven): affected from 1.32; fixed in 1.32.1\n- org.jenkins-ci.plugins:mailer (Maven): affected from 1.32; fixed in 1.32.1\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-2020-2252/ (Markdown: https://insights.sbomify.com/CVE-2020-2252/index.md)","id":"CVE-2020-2252","markdown":"https://insights.sbomify.com/CVE-2020-2252/index.md","name":"CVE-2020-2252","record":{"aliases":["GHSA-6fr3-286q-q3cr"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Jenkins Mailer Plugin","requires_auth":"none","summary":"The Jenkins Mailer Plugin fails to validate SMTP server hostnames, allowing attackers to bypass security controls or redirect traffic.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jenkins","cpe":[{"product":"mailer","vendor":"jenkins"}],"cvss":{"score":4.8,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"Jenkins Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server.","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 Validation of Certificate with Host Mismatch in Jenkins Mailer Plugin","id":"CVE-2020-2252","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"ssrf","year":"2020"},"n_packages":6,"n_references":2,"next":{"headline":"Missing hostname validation in Email Extension Plugin","id":"CVE-2020-2253"},"packages":[{"ecosystem":"Maven","fixed":["1.29.1"],"introduced":["0"],"last_affected":[],"package":"org.jenkins-ci.plugins:mailer","purl":null,"source":"GHSA-6fr3-286q-q3cr"},{"ecosystem":"Maven","fixed":["1.29.1"],"introduced":["0"],"last_affected":[],"package":"org.jenkins-ci.plugins:mailer","purl":"pkg:maven/org.jenkins-ci.plugins/mailer","source":"GHSA-6fr3-286q-q3cr"},{"ecosystem":"Maven","fixed":["1.31.1"],"introduced":["1.30"],"last_affected":[],"package":"org.jenkins-ci.plugins:mailer","purl":null,"source":"GHSA-6fr3-286q-q3cr"},{"ecosystem":"Maven","fixed":["1.31.1"],"introduced":["1.30"],"last_affected":[],"package":"org.jenkins-ci.plugins:mailer","purl":"pkg:maven/org.jenkins-ci.plugins/mailer","source":"GHSA-6fr3-286q-q3cr"},{"ecosystem":"Maven","fixed":["1.32.1"],"introduced":["1.32"],"last_affected":[],"package":"org.jenkins-ci.plugins:mailer","purl":null,"source":"GHSA-6fr3-286q-q3cr"},{"ecosystem":"Maven","fixed":["1.32.1"],"introduced":["1.32"],"last_affected":[],"package":"org.jenkins-ci.plugins:mailer","purl":"pkg:maven/org.jenkins-ci.plugins/mailer","source":"GHSA-6fr3-286q-q3cr"}],"prev":{"headline":"Passwords transmitted in plain text by Jenkins ReadyAPI Functional Testing Plugin","id":"CVE-2020-2251"},"products":["Jenkins Mailer Plugin"],"published":"2020-09-16","related":[{"cvss_score":8,"headline":"Cross-Site Request Forgery in Jenkins Mailer Plugin","id":"CVE-2018-8718","kev_date_added":null,"published":"2018-03-27"},{"cvss_score":4.3,"headline":"Cross-Site Request Forgery in Jenkins Mailer Plugin","id":"CVE-2022-20613","kev_date_added":null,"published":"2022-01-12"},{"cvss_score":4.3,"headline":"Incorrect Permission Assignment for Critical Resource in Jenkins Mailer Plugin","id":"CVE-2022-20614","kev_date_added":null,"published":"2022-01-12"},{"cvss_score":3.7,"headline":"Exposure of Sensitive Information to an Unauthorized Actor in Jenkins-mailer-plugin","id":"CVE-2017-2651","kev_date_added":null,"published":"2018-07-27"}],"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":["Jenkins project"]},"summary":"The Jenkins Mailer Plugin fails to validate SMTP server hostnames, allowing attackers to bypass security controls or redirect traffic.","url":"https://insights.sbomify.com/CVE-2020-2252/"}