{"answers":{"affected":"3 open source packages ship an affected version, including github.com/hashicorp/consul. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-9764 in the wild and no public exploit code.","fix":"Upgrade github.com/hashicorp/consul to 1.4.4 or later.","what":"CVE-2019-9764 is a high-severity vulnerability in n/a, published on 26 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-9764 and fix it if it is affected.\n\nWhat it is: CVE-2019-9764 is a high-severity vulnerability in n/a, published on 26 Mar 2019. 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-2019-9764 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/hashicorp/consul (Go): affected all versions; fixed in 1.4.4\n- github.com/hashicorp/consul (Go): affected all versions; fixed in 1.4.4\n- github.com/hashicorp/consul (Go): affected all versions; fixed in 1.4.4\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-2019-9764/ (Markdown: https://insights.sbomify.com/CVE-2019-9764/index.md)","id":"CVE-2019-9764","markdown":"https://insights.sbomify.com/CVE-2019-9764/index.md","name":"CVE-2019-9764","record":{"aliases":["GHSA-q7fx-wm2p-qfj8","GO-2023-1853","UBUNTU-CVE-2019-9764"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Service discovery tool","requires_auth":"none","summary":"HashiCorp Consul fails to verify server hostnames in TLS, allowing attackers to bypass security controls and potentially intercept or manipulate agent-to-agent communications.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"consul","vendor":"hashicorp"}],"cvss":{"score":7.4,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"description":"HashiCorp Consul 1.4.3 lacks server hostname verification for agent-to-agent TLS communication. In other words, the product behaves as if verify_server_hostname were set to false, even when it is actually set to true. This is fixed in 1.4.4.","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":"HashiCorp Consul vulnerable to Origin Validation Error","id":"CVE-2019-9764","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"security_feature_bypass","year":"2019"},"n_packages":3,"n_references":1,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2019-9765"},"packages":[{"ecosystem":"Go","fixed":["1.4.4"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/consul","purl":null,"source":"GHSA-q7fx-wm2p-qfj8"},{"ecosystem":"Go","fixed":["1.4.4"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/consul","purl":"pkg:golang/github.com/hashicorp/consul","source":"GHSA-q7fx-wm2p-qfj8"},{"ecosystem":"Go","fixed":["1.4.4"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/consul","purl":"pkg:golang/github.com/hashicorp/consul","source":"GO-2023-1853"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2019-9763"},"products":["n/a"],"published":"2019-03-26","related":[{"cvss_score":8.8,"headline":"Privilege escalation in n/a","id":"CVE-2021-41805","kev_date_added":null,"published":"2021-12-12"},{"cvss_score":8.8,"headline":"HashiCorp Consul Privilege Escalation Vulnerability","id":"CVE-2021-37219","kev_date_added":null,"published":"2021-09-07"},{"cvss_score":8.7,"headline":"Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner","id":"CVE-2023-2816","kev_date_added":null,"published":"2023-06-02"},{"cvss_score":8.3,"headline":"Consul L7 Intentions Vulnerable To Headers Bypass","id":"CVE-2024-10006","kev_date_added":null,"published":"2024-10-30"},{"cvss_score":8.1,"headline":"Consul L7 Intentions Vulnerable To URL Path Bypass","id":"CVE-2024-10005","kev_date_added":null,"published":"2024-10-30"},{"cvss_score":8.1,"headline":"HashiCorp Consul Access Restriction Bypass","id":"CVE-2019-8336","kev_date_added":null,"published":"2019-03-05"},{"cvss_score":7.5,"headline":"Hashicorp Consul Missing SSL Certificate Validation","id":"CVE-2021-32574","kev_date_added":null,"published":"2021-07-17"}],"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":"HashiCorp Consul fails to verify server hostnames in TLS, allowing attackers to bypass security controls and potentially intercept or manipulate agent-to-agent communications.","url":"https://insights.sbomify.com/CVE-2019-9764/"}