{"answers":{"affected":"2 open source packages ship an affected version, including phpservermon/phpservermon. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-4097 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-4097 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-4097 is a medium-severity vulnerability in phpservermon/phpservermon, published on 11 Dec 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-2021-4097 and fix it if it is affected.\n\nWhat it is: CVE-2021-4097 is a medium-severity vulnerability in phpservermon/phpservermon, published on 11 Dec 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-2021-4097 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- phpservermon/phpservermon (Packagist): affected all versions up to 3.5.2; no fix listed\n- phpservermon/phpservermon (Packagist): affected all versions up to 3.5.2; no fix listed\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-2021-4097/ (Markdown: https://insights.sbomify.com/CVE-2021-4097/index.md)","id":"CVE-2021-4097","markdown":"https://insights.sbomify.com/CVE-2021-4097/index.md","name":"CVE-2021-4097","record":{"aliases":["GHSA-8qv8-fq5w-p966"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["other"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP server monitoring","requires_auth":"none","summary":"Attackers can inject CRLF sequences into phpservermon, potentially manipulating HTTP headers or log entries.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntrdev","cpe":[{"product":"php_server_monitor","vendor":"phpservermonitor"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.0"},"cwes":[{"id":"CWE-93","name":"Improper Neutralization of CRLF Sequences"}],"description":"phpservermon is vulnerable to Improper Neutralization of CRLF Sequences","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"CRLF Injection in phpservermon/phpservermon","id":"CVE-2021-4097","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"other","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Memory corruption in Chrome","id":"CVE-2021-4098"},"packages":[{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["3.5.2"],"package":"phpservermon/phpservermon","purl":null,"source":"GHSA-8qv8-fq5w-p966"},{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["3.5.2"],"package":"phpservermon/phpservermon","purl":"pkg:composer/phpservermon/phpservermon","source":"GHSA-8qv8-fq5w-p966"}],"prev":{"headline":"Fancy Product Designer \u003c= 4.7.5 - Cross-Site Request Forgery to Arbitrary File Upload","id":"CVE-2021-4096"},"products":["phpservermon/phpservermon"],"published":"2021-12-11","related":[{"cvss_score":6.5,"headline":"CSRF in PHP Server Monitor before 3.3.2","id":"CVE-2018-18921","kev_date_added":null,"published":"2018-12-18"},{"cvss_score":2.6,"headline":"phpservermon User.php generatePasswordResetToken predictable algorithm in random number generator","id":"CVE-2021-4240","kev_date_added":null,"published":"2022-11-15"},{"cvss_score":2.6,"headline":"phpservermon User.php setUserLoggedIn predictable algorithm in random number generator","id":"CVE-2021-4241","kev_date_added":null,"published":"2022-11-15"}],"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":"2024-08-03","vendors":["phpservermon"]},"summary":"Attackers can inject CRLF sequences into phpservermon, potentially manipulating HTTP headers or log entries.","url":"https://insights.sbomify.com/CVE-2021-4097/"}