{"answers":{"affected":"3 open source packages ship an affected version, including github.com/hashicorp/nomad. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-7956 in the wild and no public exploit code.","fix":"Upgrade github.com/hashicorp/nomad to 0.10.3 or later.","what":"CVE-2020-7956 is a critical authentication bypass vulnerability in n/a, published on 31 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-7956 and fix it if it is affected.\n\nWhat it is: CVE-2020-7956 is a critical authentication bypass vulnerability in n/a, published on 31 Jan 2020. 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-2020-7956 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/hashicorp/nomad (Go): affected all versions; fixed in 0.10.3\n- github.com/hashicorp/nomad (Go): affected all versions; fixed in 0.10.3\n- github.com/hashicorp/nomad (Go): affected all versions; fixed in 0.10.3\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-2020-7956/ (Markdown: https://insights.sbomify.com/CVE-2020-7956/index.md)","id":"CVE-2020-7956","markdown":"https://insights.sbomify.com/CVE-2020-7956/index.md","name":"CVE-2020-7956","record":{"aliases":["GHSA-cj2h-ww36-v932","GO-2022-0821","UBUNTU-CVE-2020-7956"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Nomad orchestration","requires_auth":"none","summary":"Attackers can escalate privileges by exploiting incorrect TLS certificate validation in HashiCorp Nomad's mTLS RPC mechanism.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nomad","vendor":"hashicorp"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","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-295","name":"Improper Certificate Validation"}],"description":"HashiCorp Nomad and Nomad Enterprise up to 0.10.2 incorrectly validated role/region associated with TLS certificates used for mTLS RPC, and were susceptible to privilege escalation. Fixed in 0.10.3.","ecosystems":["Go"],"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":"Improper Certificate Validation in HashiCorp Nomad","id":"CVE-2020-7956","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2020"},"n_packages":3,"n_references":2,"next":{"headline":"Denial of service in n/a","id":"CVE-2020-7957"},"packages":[{"ecosystem":"Go","fixed":["0.10.3"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/nomad","purl":null,"source":"GHSA-cj2h-ww36-v932"},{"ecosystem":"Go","fixed":["0.10.3"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/nomad","purl":"pkg:golang/github.com/hashicorp/nomad","source":"GHSA-cj2h-ww36-v932"},{"ecosystem":"Go","fixed":["0.10.3"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/nomad","purl":"pkg:golang/github.com/hashicorp/nomad","source":"GO-2022-0821"}],"prev":{"headline":"Incorrect Authorization in HashiCorp Consul","id":"CVE-2020-7955"},"products":["n/a"],"published":"2020-01-31","related":[{"cvss_score":10,"headline":"Nomad Unauthenticated Client Agent HTTP Request Privilege Escalation","id":"CVE-2023-1782","kev_date_added":null,"published":"2023-04-05"},{"cvss_score":9.8,"headline":"Privilege escalation in Hashicorp Nomad","id":"CVE-2022-30324","kev_date_added":null,"published":"2022-05-27"},{"cvss_score":9.8,"headline":"Hashicorp Nomad Access Control Issues","id":"CVE-2019-12618","kev_date_added":null,"published":"2019-08-12"},{"cvss_score":9.1,"headline":"Use After Free in HashiCorp Nomad","id":"CVE-2020-27195","kev_date_added":null,"published":"2020-10-22"},{"cvss_score":8.8,"headline":"Improper Authentication in HashiCorp Nomad","id":"CVE-2021-43415","kev_date_added":null,"published":"2021-12-03"},{"cvss_score":8.8,"headline":"Privilege escalation in Hashicorp Nomad","id":"CVE-2021-37218","kev_date_added":null,"published":"2021-09-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can escalate privileges by exploiting incorrect TLS certificate validation in HashiCorp Nomad's mTLS RPC mechanism.","url":"https://insights.sbomify.com/CVE-2020-7956/"}