{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-27708 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27708 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27708 is a critical command injection vulnerability in Totolink X5000r Firmware, published on 14 Apr 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-2021-27708 and fix it if it is affected.\n\nWhat it is: CVE-2021-27708 is a critical command injection vulnerability in Totolink X5000r Firmware, published on 14 Apr 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-2021-27708 in the wild and no public exploit code.\n\nAffected product: Totolink X5000r Firmware. 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-2021-27708/ (Markdown: https://insights.sbomify.com/CVE-2021-27708/index.md)","id":"CVE-2021-27708","markdown":"https://insights.sbomify.com/CVE-2021-27708/index.md","name":"CVE-2021-27708","record":{"aliases":["GHSA-x4fh-cj9q-q3x6"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"TOTOLINK router","requires_auth":"none","summary":"Remote attackers can execute arbitrary OS commands on TOTOLINK routers via modified HTTP requests due to unsafe system function usage.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"a720r_firmware","vendor":"totolink"},{"product":"x5000r_firmware","vendor":"totolink"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands by sending a modified HTTP request. This occurs because the function executes glibc's system function with untrusted input. In the function, \"command\" parameter is directly passed to the attacker, allowing them to control the \"command\" field to attack the OS.","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":"Command injection in n/a","id":"CVE-2021-27708","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"totolink:x5000r_firmware","products":["totolink:x5000r_firmware"],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Command injection in n/a","id":"CVE-2021-27710"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2021-27707"},"products":["n/a"],"published":"2021-04-14","related":[{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2023-23064","kev_date_added":null,"published":"2023-02-17"},{"cvss_score":9.8,"headline":"Denial of service in n/a","id":"CVE-2021-45740","kev_date_added":null,"published":"2022-02-04"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-45742","kev_date_added":null,"published":"2022-02-04"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2021-35324","kev_date_added":null,"published":"2021-08-05"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2021-35327","kev_date_added":null,"published":"2021-08-05"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-27710","kev_date_added":null,"published":"2021-04-14"}],"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":"Remote attackers can execute arbitrary OS commands on TOTOLINK routers via modified HTTP requests due to unsafe system function usage.","url":"https://insights.sbomify.com/CVE-2021-27708/"}