{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31349 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31349 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31349 is a critical authentication bypass vulnerability in Juniper Networks 128 Technology Session Smart Router, published on 19 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31349 and fix it if it is affected.\n\nWhat it is: CVE-2021-31349 is a critical authentication bypass vulnerability in Juniper Networks 128 Technology Session Smart Router, published on 19 Oct 2021. 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-2021-31349 in the wild and no public exploit code.\n\nAffected product: Juniper Networks 128 Technology Session Smart Router. 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-2021-31349/ (Markdown: https://insights.sbomify.com/CVE-2021-31349/index.md)","id":"CVE-2021-31349","markdown":"https://insights.sbomify.com/CVE-2021-31349/index.md","name":"CVE-2021-31349","record":{"aliases":["GHSA-4r2w-j4p7-rw4p"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Session Smart Router","requires_auth":"none","summary":"An attacker can bypass authentication via an internal HTTP header to view files, change settings, and execute arbitrary code on Juniper Session Smart Routers.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"128_technology_session_smart_router_firmware","vendor":"juniper"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","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-287","name":"Improper Authentication"}],"description":"The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings, manipulate services and execute arbitrary code. This issue affects all Juniper Networks 128 Technology Session Smart Router versions prior to 4.5.11, and all versions of 5.0 up to and including 5.0.1.","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":"Session Smart Router: Authentication Bypass Vulnerability","id":"CVE-2021-31349","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":"Junos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Toolkit (JET)","id":"CVE-2021-31350"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2021-31348"},"products":["128 Technology Session Smart Router"],"published":"2021-10-19","related":[],"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":"2024-09-16","vendors":["Juniper Networks"]},"summary":"An attacker can bypass authentication via an internal HTTP header to view files, change settings, and execute arbitrary code on Juniper Session Smart Routers.","url":"https://insights.sbomify.com/CVE-2021-31349/"}