{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-1393 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1393 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1393 is a critical authentication bypass vulnerability in Cisco Application Services Engine Software, published on 24 Feb 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-2021-1393 and fix it if it is affected.\n\nWhat it is: CVE-2021-1393 is a critical authentication bypass vulnerability in Cisco Application Services Engine Software, published on 24 Feb 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-2021-1393 in the wild and no public exploit code.\n\nAffected product: Cisco Application Services Engine Software. 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-2021-1393/ (Markdown: https://insights.sbomify.com/CVE-2021-1393/index.md)","id":"CVE-2021-1393","markdown":"https://insights.sbomify.com/CVE-2021-1393/index.md","name":"CVE-2021-1393","record":{"aliases":["GHSA-m5h3-jr9w-ww4r"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation","data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Application Services Engine","requires_auth":"none","summary":"Unauthenticated remote attackers can gain privileged host access, view device information, and modify configurations on Cisco Application Services Engine.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"application_policy_infrastructure_controller","vendor":"cisco"},{"product":"application_services_engine","vendor":"cisco"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","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-306","name":"Missing Authentication for Critical Functionality"}],"description":"Multiple vulnerabilities in Cisco Application Services Engine could allow an unauthenticated, remote attacker to gain privileged access to host-level operations or to learn device-specific information, create diagnostic files, and make limited configuration changes. 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 Application Services Engine Unauthorized Access Vulnerabilities","id":"CVE-2021-1393","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability","id":"CVE-2021-1394"},"packages":[],"prev":{"headline":"Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerability","id":"CVE-2021-1392"},"products":["Cisco Application Services Engine Software"],"published":"2021-02-24","related":[{"cvss_score":9.8,"headline":"Cisco Application Services Engine Unauthorized Access Vulnerabilities","id":"CVE-2021-1396","kev_date_added":null,"published":"2021-02-24"},{"cvss_score":9.1,"headline":"Cisco Application Policy Infrastructure Controller Arbitrary File Read and Write Vulnerability","id":"CVE-2021-1577","kev_date_added":null,"published":"2021-08-25"},{"cvss_score":8.8,"headline":"Cross-site request forgery in Cisco Application Policy Infrastructure Controller (APIC)","id":"CVE-2023-20011","kev_date_added":null,"published":"2023-02-23"},{"cvss_score":8.8,"headline":"Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability","id":"CVE-2021-1578","kev_date_added":null,"published":"2021-08-25"},{"cvss_score":8.1,"headline":"Cisco Application Policy Infrastructure Controller App Privilege Escalation Vulnerability","id":"CVE-2021-1579","kev_date_added":null,"published":"2021-08-25"},{"cvss_score":7.8,"headline":"Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability","id":"CVE-2019-1682","kev_date_added":null,"published":"2019-05-03"}],"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":"2024-11-08","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can gain privileged host access, view device information, and modify configurations on Cisco Application Services Engine.","url":"https://insights.sbomify.com/CVE-2021-1393/"}