{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20077 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20077 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20077 is a medium-severity vulnerability in Tenable Nessus Agent, published on 19 Mar 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-2021-20077 and fix it if it is affected.\n\nWhat it is: CVE-2021-20077 is a medium-severity vulnerability in Tenable Nessus Agent, published on 19 Mar 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-2021-20077 in the wild and no public exploit code.\n\nAffected product: Tenable Nessus Agent. 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-2021-20077/ (Markdown: https://insights.sbomify.com/CVE-2021-20077/index.md)","id":"CVE-2021-20077","markdown":"https://insights.sbomify.com/CVE-2021-20077/index.md","name":"CVE-2021-20077","record":{"aliases":["GHSA-fh62-2wf5-r836"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Nessus Agent","requires_auth":"high_privilege","summary":"A privileged attacker can obtain the IAM role security token from the local host when the Nessus Agent is linked on an EC2 instance.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"tenable","cpe":[{"product":"nessus_agent","vendor":"tenable"}],"cvss":{"score":6.7,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.","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":"Information disclosure in Tenable Nessus Agent","id":"CVE-2021-20077","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Path traversal in Manage Engine OpManager","id":"CVE-2021-20078"},"packages":[],"prev":{"headline":"Deserialization in Tenable.sc","id":"CVE-2021-20076"},"products":["Tenable Nessus Agent"],"published":"2021-03-19","related":[{"cvss_score":9.3,"headline":"Tenable Agent Path Traversal Leading to Remote Code Execution","id":"CVE-2026-15265","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":8.8,"headline":"Local Privilege Escalation","id":"CVE-2025-36633","kev_date_added":null,"published":"2025-06-13"},{"cvss_score":8.4,"headline":"Local Privilege Escalation","id":"CVE-2025-36631","kev_date_added":null,"published":"2025-06-13"},{"cvss_score":7.8,"headline":"Local Privilege Escalation","id":"CVE-2025-36632","kev_date_added":null,"published":"2025-06-16"},{"cvss_score":6.7,"headline":"Privilege escalation in Nessus Agent","id":"CVE-2021-20117","kev_date_added":null,"published":"2021-09-09"},{"cvss_score":6.7,"headline":"Privilege escalation in Nessus Agent","id":"CVE-2021-20118","kev_date_added":null,"published":"2021-09-09"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"A privileged attacker can obtain the IAM role security token from the local host when the Nessus Agent is linked on an EC2 instance.","url":"https://insights.sbomify.com/CVE-2021-20077/"}