{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-1677 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1677 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1677 is a medium-severity authentication bypass vulnerability in Microsoft Azure Kubernetes Service, published on 12 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-1677 and fix it if it is affected.\n\nWhat it is: CVE-2021-1677 is a medium-severity authentication bypass vulnerability in Microsoft Azure Kubernetes Service, published on 12 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-1677 in the wild and no public exploit code.\n\nAffected product: Microsoft Azure Kubernetes Service. 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-2021-1677/ (Markdown: https://insights.sbomify.com/CVE-2021-1677/index.md)","id":"CVE-2021-1677","markdown":"https://insights.sbomify.com/CVE-2021-1677/index.md","name":"CVE-2021-1677","record":{"aliases":["GHSA-jr8j-fh83-j7h4"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Azure Kubernetes Service","requires_auth":"low_privilege","summary":"Attackers can spoof Azure AD Pod Identity to gain unauthorized access and escalate privileges within Azure Kubernetes Service clusters.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"azure_kubernetes_service","vendor":"microsoft"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Azure Active Directory Pod Identity Spoofing Vulnerability","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":"Azure Active Directory Pod Identity Spoofing Vulnerability","id":"CVE-2021-1677","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":"Windows Print Spooler Spoofing Vulnerability","id":"CVE-2021-1678"},"packages":[],"prev":{"headline":"Windows NT Lan Manager Datagram Receiver Driver Information Disclosure Vulnerability","id":"CVE-2021-1676"},"products":["Microsoft Azure Kubernetes Service"],"published":"2021-01-12","related":[{"cvss_score":10,"headline":"Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability","id":"CVE-2026-56163","kev_date_added":null,"published":"2026-07-24"},{"cvss_score":10,"headline":"Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability","id":"CVE-2026-33105","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":9.4,"headline":"Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability","id":"CVE-2026-50516","kev_date_added":null,"published":"2026-08-11"},{"cvss_score":9,"headline":"Microsoft Azure Kubernetes Service Confidential Container Remote Code Execution Vulnerability","id":"CVE-2024-21376","kev_date_added":null,"published":"2024-02-13"},{"cvss_score":9,"headline":"Microsoft Azure Kubernetes Service Confidential Container Elevation of Privilege Vulnerability","id":"CVE-2024-21403","kev_date_added":null,"published":"2024-02-13"},{"cvss_score":8.8,"headline":"Azure Kubernetes Service (AKS) Remote Code Execution Vulnerability","id":"CVE-2026-32193","kev_date_added":null,"published":"2026-06-09"},{"cvss_score":7.5,"headline":"Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability","id":"CVE-2023-29332","kev_date_added":null,"published":"2023-09-12"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-19","vendors":["Microsoft"]},"summary":"Attackers can spoof Azure AD Pod Identity to gain unauthorized access and escalate privileges within Azure Kubernetes Service clusters.","url":"https://insights.sbomify.com/CVE-2021-1677/"}