{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2021-40112 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-40112 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-40112 is a critical command injection vulnerability in Cisco Catalyst PON Series, published on 4 Nov 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-2021-40112 and fix it if it is affected.\n\nWhat it is: CVE-2021-40112 is a critical command injection vulnerability in Cisco Catalyst PON Series, published on 4 Nov 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-2021-40112 in the wild and no public exploit code.\n\nAffected product: Cisco Catalyst PON Series. 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-2021-40112/ (Markdown: https://insights.sbomify.com/CVE-2021-40112/index.md)","id":"CVE-2021-40112","markdown":"https://insights.sbomify.com/CVE-2021-40112/index.md","name":"CVE-2021-40112","record":{"aliases":["GHSA-xj98-pcc3-hvhq"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"Cisco PON Switch","requires_auth":"none","summary":"Unauthenticated remote attackers can execute arbitrary commands and modify configurations on Cisco Catalyst PON switches if Telnet is enabled.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"catalyst_pon_switch_cgp-ont-1p_firmware","vendor":"cisco"},{"product":"catalyst_pon_switch_cgp-ont-4p_firmware","vendor":"cisco"},{"product":"catalyst_pon_switch_cgp-ont-4pv_firmware","vendor":"cisco"},{"product":"catalyst_pon_switch_cgp-ont-4pvc_firmware","vendor":"cisco"},{"product":"catalyst_pon_switch_cgp-ont-4tvcw_firmware","vendor":"cisco"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical Network Terminal (ONT) could allow an unauthenticated, remote attacker to perform the following actions: Log in with a default credential if the Telnet protocol is enabled Perform command injection Modify the configuration For more information about these vulnerabilities, see the Details section of this advisory.","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":"Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities","id":"CVE-2021-40112","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities","id":"CVE-2021-40113"},"packages":[],"prev":{"headline":"Apache James IMAP parsing Denial Of Service","id":"CVE-2021-40111"},"products":["Cisco Catalyst PON Series"],"published":"2021-11-04","related":[{"cvss_score":10,"headline":"Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities","id":"CVE-2021-34795","kev_date_added":null,"published":"2021-11-04"},{"cvss_score":10,"headline":"Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities","id":"CVE-2021-40113","kev_date_added":null,"published":"2021-11-04"}],"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-07","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can execute arbitrary commands and modify configurations on Cisco Catalyst PON switches if Telnet is enabled.","url":"https://insights.sbomify.com/CVE-2021-40112/"}