{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-1577 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1577 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1577 is a critical missing authorization vulnerability in Cisco Application Policy Infrastructure Controller (APIC), published on 25 Aug 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-2021-1577 and fix it if it is affected.\n\nWhat it is: CVE-2021-1577 is a critical missing authorization vulnerability in Cisco Application Policy Infrastructure Controller (APIC), published on 25 Aug 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-2021-1577 in the wild and no public exploit code.\n\nAffected product: Cisco Application Policy Infrastructure Controller (APIC). 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-2021-1577/ (Markdown: https://insights.sbomify.com/CVE-2021-1577/index.md)","id":"CVE-2021-1577","markdown":"https://insights.sbomify.com/CVE-2021-1577/index.md","name":"CVE-2021-1577","record":{"aliases":["GHSA-c569-4cq6-rvg9"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco APIC","requires_auth":"none","summary":"Unauthenticated attackers can read or write arbitrary files on Cisco APIC devices via an insecure API endpoint.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"application_policy_infrastructure_controller","vendor":"cisco"},{"product":"cloud_application_policy_infrastructure_controller","vendor":"cisco"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"A vulnerability in an API endpoint of Cisco Application Policy Infrastructure Controller (APIC) and Cisco Cloud Application Policy Infrastructure Controller (Cloud APIC) could allow an unauthenticated, remote attacker to read or write arbitrary files on an affected system. This vulnerability is due to improper access control. An attacker could exploit this vulnerability by using a specific API endpoint to upload a file to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on an affected device.","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 Policy Infrastructure Controller Arbitrary File Read and Write Vulnerability","id":"CVE-2021-1577","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability","id":"CVE-2021-1578"},"packages":[],"prev":{"headline":"Cisco Business Process Automation Privilege Escalation Vulnerabilities","id":"CVE-2021-1576"},"products":["Cisco Application Policy Infrastructure Controller (APIC)"],"published":"2021-08-25","related":[{"cvss_score":9.8,"headline":"Cisco Application Services Engine Unauthorized Access Vulnerabilities","id":"CVE-2021-1393","kev_date_added":null,"published":"2021-02-24"},{"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":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":"2024-11-07","vendors":["Cisco"]},"summary":"Unauthenticated attackers can read or write arbitrary files on Cisco APIC devices via an insecure API endpoint.","url":"https://insights.sbomify.com/CVE-2021-1577/"}