{"answers":{"affected":"It affects 4 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-4242 exists.","fix":"No fix has been published for CVE-2021-4242 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-4242 is a medium-severity command injection vulnerability in Sapido BR270n, published on 30 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-4242 and fix it if it is affected.\n\nWhat it is: CVE-2021-4242 is a medium-severity command injection vulnerability in Sapido BR270n, published on 30 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-4242 exists.\n\nAffected product: Sapido BR270n. 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-2021-4242/ (Markdown: https://insights.sbomify.com/CVE-2021-4242/index.md)","id":"CVE-2021-4242","markdown":"https://insights.sbomify.com/CVE-2021-4242/index.md","name":"CVE-2021-4242","record":{"aliases":["GHSA-2gp5-q39j-fmr2"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Sapido router","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary OS commands on Sapido routers via the syscmd.htm interface, potentially compromising the device.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"br270n_firmware","vendor":"sapido"},{"product":"brc76n_firmware","vendor":"sapido"},{"product":"gr297n_firmware","vendor":"sapido"},{"product":"rb-1732_firmware","vendor":"sapido"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"},{"id":"CWE-707","name":"Improper Neutralization"}],"description":"A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Sapido BR270n/BRC76n/GR297/RB1732 syscmd.htm os command injection","id":"CVE-2021-4242","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"yikes-inc-easy-mailchimp-extender Plugin add_field_to_form.php cross site scripting","id":"CVE-2021-4244"},"packages":[],"prev":{"headline":"phpservermon User.php setUserLoggedIn predictable algorithm in random number generator","id":"CVE-2021-4241"},"products":["BR270n","BRC76n","GR297","RB1732"],"published":"2022-11-30","related":[],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-15","vendors":["Sapido"]},"summary":"Remote attackers can execute arbitrary OS commands on Sapido routers via the syscmd.htm interface, potentially compromising the device.","url":"https://insights.sbomify.com/CVE-2021-4242/"}