{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2010-4021 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2010-4021 is a low-severity authentication bypass vulnerability in Mit Kerberos 5, published on 2 Dec 2010. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2010-4021 and fix it if it is affected.\n\nWhat it is: CVE-2010-4021 is a low-severity authentication bypass vulnerability in Mit Kerberos 5, published on 2 Dec 2010. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2010-4021 in the wild and no public exploit code.\n\nAffected product: Mit Kerberos 5. 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-2010-4021/ (Markdown: https://insights.sbomify.com/CVE-2010-4021/index.md)","id":"CVE-2010-4021","markdown":"https://insights.sbomify.com/CVE-2010-4021/index.md","name":"CVE-2010-4021","record":{"aliases":["DEBIAN-CVE-2010-4021","GHSA-w2r7-v523-8fwv"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Kerberos KDC","requires_auth":"low_privilege","summary":"Remote authenticated users can impersonate clients by forging KrbFastReq messages, leading to privilege escalation and security bypass in MIT Kerberos.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"kerberos_5","vendor":"mit"}],"cvss":{"score":2.1,"severity":"low","source":"nvd","vector":"AV:N/AC:H/Au:S/C:N/I:P/A:N","version":"2.0"},"cwes":[{"id":"CWE-264","name":null},{"id":"CWE-16","name":null}],"description":"The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a \"KrbFastReq forgery issue.\"","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Auth bypass in n/a","id":"CVE-2010-4021","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"mit:kerberos_5","products":["mit:kerberos_5"],"type":"auth_bypass","year":"2010"},"n_packages":0,"n_references":17,"next":{"headline":"Denial of service in n/a","id":"CVE-2010-4022"},"packages":[],"prev":{"headline":"Weak cryptography in n/a","id":"CVE-2010-4020"},"products":["n/a"],"published":"2010-12-02","related":[{"cvss_score":10,"headline":"Use after free in n/a","id":"CVE-2011-0285","kev_date_added":null,"published":"2011-04-15"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2008-0947","kev_date_added":null,"published":"2008-03-19"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2007-5902","kev_date_added":null,"published":"2007-12-06"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-4743","kev_date_added":null,"published":"2007-09-06"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-3999","kev_date_added":null,"published":"2007-09-05"},{"cvss_score":10,"headline":"Missing authorization in n/a","id":"CVE-2000-0514","kev_date_added":null,"published":"2000-10-13"},{"cvss_score":9.8,"headline":"Memory corruption in krb5 1.5","id":"CVE-2017-15088","kev_date_added":null,"published":"2017-11-23"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-07","vendors":["n/a"]},"summary":"Remote authenticated users can impersonate clients by forging KrbFastReq messages, leading to privilege escalation and security bypass in MIT Kerberos.","url":"https://insights.sbomify.com/CVE-2010-4021/"}