{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-21804 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-21804 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21804 is a high-severity code injection vulnerability in Advantech, published on 16 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-21804 and fix it if it is affected.\n\nWhat it is: CVE-2021-21804 is a high-severity code injection vulnerability in Advantech, published on 16 Jul 2021. 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-2021-21804 in the wild and no public exploit code.\n\nAffected product: Advantech. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-21804/ (Markdown: https://insights.sbomify.com/CVE-2021-21804/index.md)","id":"CVE-2021-21804","markdown":"https://insights.sbomify.com/CVE-2021-21804/index.md","name":"CVE-2021-21804","record":{"aliases":["GHSA-6vrg-rvc9-7gxh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Advantech R-SeeNet","requires_auth":"none","summary":"A local file inclusion vulnerability in Advantech R-SeeNet allows attackers to execute arbitrary PHP code via crafted HTTP requests.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"r-seenet","vendor":"advantech"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"},{"id":"CWE-98","name":"Improper Control of Filename for Include/Require Statement in PHP Program"}],"description":"A local file inclusion (LFI) vulnerability exists in the options.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). A specially crafted HTTP request can lead to arbitrary PHP code execution. An attacker can send a crafted HTTP request to trigger this vulnerability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Code injection in Advantech","id":"CVE-2021-21804","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in Advantech","id":"CVE-2021-21805"},"packages":[],"prev":{"headline":"Cross-site scripting in Advantech","id":"CVE-2021-21803"},"products":["Advantech"],"published":"2021-07-16","related":[{"cvss_score":9.8,"headline":"Advantech R-SeeNet Unauthenticated Read/Write","id":"CVE-2023-5642","kev_date_added":null,"published":"2023-10-18"},{"cvss_score":9.8,"headline":"Advantech R-SeeNet Use of Hard-coded Credentials","id":"CVE-2023-2611","kev_date_added":null,"published":"2023-06-22"},{"cvss_score":9.8,"headline":"Memory corruption in R-SeeNet","id":"CVE-2022-3385","kev_date_added":null,"published":"2022-10-27"},{"cvss_score":9.8,"headline":"Memory corruption in R-SeeNet","id":"CVE-2022-3386","kev_date_added":null,"published":"2022-10-27"},{"cvss_score":9.8,"headline":"Command injection in Advantech","id":"CVE-2021-21805","kev_date_added":null,"published":"2021-08-05"},{"cvss_score":9.6,"headline":"Cross-site scripting in Advantech","id":"CVE-2021-21799","kev_date_added":null,"published":"2021-07-16"},{"cvss_score":9.6,"headline":"Cross-site scripting in Advantech","id":"CVE-2021-21800","kev_date_added":null,"published":"2021-07-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":["n/a"]},"summary":"A local file inclusion vulnerability in Advantech R-SeeNet allows attackers to execute arbitrary PHP code via crafted HTTP requests.","url":"https://insights.sbomify.com/CVE-2021-21804/"}