{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-1312 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1312 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1312 is a medium-severity denial of service vulnerability in Cisco Elastic Services Controller, published on 20 Jan 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-2021-1312 and fix it if it is affected.\n\nWhat it is: CVE-2021-1312 is a medium-severity denial of service vulnerability in Cisco Elastic Services Controller, published on 20 Jan 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-2021-1312 in the wild and no public exploit code.\n\nAffected product: Cisco Elastic Services Controller. 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-2021-1312/ (Markdown: https://insights.sbomify.com/CVE-2021-1312/index.md)","id":"CVE-2021-1312","markdown":"https://insights.sbomify.com/CVE-2021-1312/index.md","name":"CVE-2021-1312","record":{"aliases":["GHSA-3fjh-3qmq-p25v"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Cisco Elastic Services Controller","requires_auth":"none","summary":"Unauthenticated remote attackers can cause denial of service on the health monitor API by flooding TCP packets, affecting users who enable this feature.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"elastic_services_controller","vendor":"cisco"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A vulnerability in the system resource management of Cisco Elastic Services Controller (ESC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) to the health monitor API on an affected device. The vulnerability is due to inadequate provisioning of kernel parameters for the maximum number of TCP connections and SYN backlog. An attacker could exploit this vulnerability by sending a flood of crafted TCP packets to an affected device. A successful exploit could allow the attacker to block TCP listening ports that are used by the health monitor API. This vulnerability only affects customers who use the health monitor API.","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 Elastic Services Controller Denial of Service Vulnerability","id":"CVE-2021-1312","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco IOS XR Software Enf Broker Denial of Service Vulnerability","id":"CVE-2021-1313"},"packages":[],"prev":{"headline":"Cisco Webex Meetings and Cisco Webex Meetings Server Host Key Brute Forcing Vulnerability","id":"CVE-2021-1311"},"products":["Cisco Elastic Services Controller"],"published":"2021-01-20","related":[{"cvss_score":10,"headline":"Cisco Elastic Services Controller REST API Authentication Bypass Vulnerability","id":"CVE-2019-1867","kev_date_added":null,"published":"2019-05-10"},{"cvss_score":9.8,"headline":"Auth bypass in Cisco Elastic Services Controller","id":"CVE-2018-0121","kev_date_added":null,"published":"2018-02-22"},{"cvss_score":9.8,"headline":"Hardcoded credentials in Cisco Elastic Services Controller","id":"CVE-2017-6713","kev_date_added":null,"published":"2017-07-06"},{"cvss_score":8.8,"headline":"Command injection in Cisco Elastic Services Controller","id":"CVE-2017-6712","kev_date_added":null,"published":"2017-07-06"},{"cvss_score":8.8,"headline":"Command injection in Cisco Elastic Services Controller","id":"CVE-2017-6682","kev_date_added":null,"published":"2017-06-13"},{"cvss_score":8.8,"headline":"Command injection in Cisco Elastic Services Controller","id":"CVE-2017-6683","kev_date_added":null,"published":"2017-06-13"},{"cvss_score":8.8,"headline":"Hardcoded credentials in Cisco Elastic Services Controller","id":"CVE-2017-6684","kev_date_added":null,"published":"2017-06-13"}],"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":"partial"},"state":"PUBLISHED","updated":"2024-11-12","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can cause denial of service on the health monitor API by flooding TCP packets, affecting users who enable this feature.","url":"https://insights.sbomify.com/CVE-2021-1312/"}