{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31520 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31520 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31520 is a high-severity authentication bypass vulnerability in Trend Micro IM Security, published on 10 May 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-2021-31520 and fix it if it is affected.\n\nWhat it is: CVE-2021-31520 is a high-severity authentication bypass vulnerability in Trend Micro IM Security, published on 10 May 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-2021-31520 in the wild and no public exploit code.\n\nAffected product: Trend Micro IM Security. 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-2021-31520/ (Markdown: https://insights.sbomify.com/CVE-2021-31520/index.md)","id":"CVE-2021-31520","markdown":"https://insights.sbomify.com/CVE-2021-31520/index.md","name":"CVE-2021-31520","record":{"aliases":["GHSA-f4cv-895p-vw62"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Trend Micro IM Security","requires_auth":"none","summary":"Remote attackers can guess weak session tokens to bypass authentication and access the web management interface of Trend Micro IM Security.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"trendmicro","cpe":[{"product":"im_security","vendor":"trendmicro"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"A weak session token authentication bypass vulnerability in Trend Micro IM Security 1.6 and 1.6.5 could allow an remote attacker to guess currently logged-in administrators' session session token in order to gain access to the product's web management interface.","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":"Auth bypass in Trend Micro IM Security","id":"CVE-2021-31520","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2021-31521"},"packages":[],"prev":{"headline":"Privilege escalation in Trend Micro HouseCall for Home Networks","id":"CVE-2021-31519"},"products":["Trend Micro IM Security"],"published":"2021-05-10","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":"2024-08-03","vendors":["Trend Micro"]},"summary":"Remote attackers can guess weak session tokens to bypass authentication and access the web management interface of Trend Micro IM Security.","url":"https://insights.sbomify.com/CVE-2021-31520/"}