{"answers":{"affected":"It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2021-21985 in the wild since at least 3 Nov 2021, including in ransomware campaigns.","fix":"No fix has been published for CVE-2021-21985 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Nov 2021.","what":"CVE-2021-21985 is a critical command injection vulnerability in Vmware Cloud Foundation, published on 26 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-2021-21985 and fix it if it is affected.\n\nWhat it is: CVE-2021-21985 is a critical command injection vulnerability in Vmware Cloud Foundation, published on 26 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2021-21985 in the wild since at least 3 Nov 2021, including in ransomware campaigns.\n\nAffected product: Vmware Cloud Foundation. 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-2021-21985/ (Markdown: https://insights.sbomify.com/CVE-2021-21985/index.md)","id":"CVE-2021-21985","markdown":"https://insights.sbomify.com/CVE-2021-21985/index.md","name":"CVE-2021-21985","record":{"aliases":["GHSA-rg6m-2r9v-c5fj"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"VMware vCenter Server","requires_auth":"none","summary":"Remote attackers can execute arbitrary commands with unrestricted privileges on the vCenter Server host via the Virtual SAN Health Check plug-in.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"vmware","cpe":[{"product":"cloud_foundation","vendor":"vmware"},{"product":"vcenter_server","vendor":"vmware"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-918","name":"Server-Side Request Forgery"},{"id":"CWE-470","name":"Use of Externally-Controlled Input to Select Classes or Code"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-05-25","github_poc":10,"max_poc_stars":214,"metasploit":1,"nuclei":1,"refs":[{"date":"2021-05-29T13:07:14Z","kind":"github_poc","ref":"https://github.com/alt3kx/CVE-2021-21985_PoC","stars":214,"title":null},{"date":"2021-06-03T12:17:06Z","kind":"github_poc","ref":"https://github.com/xnianq/cve-2021-21985_exp","stars":115,"title":"cve-2021-21985 exploit"},{"date":"2021-06-05T11:03:13Z","kind":"github_poc","ref":"https://github.com/testanull/Project_CVE-2021-21985_PoC","stars":28,"title":null},{"date":"2021-11-09T19:06:29Z","kind":"github_poc","ref":"https://github.com/sknux/CVE-2021-21985_PoC","stars":3,"title":"VMWARE VCENTER SERVER VIRTUAL SAN HEALTH CHECK PLUG-IN RCE (CVE-2021-21985) "},{"date":"2021-06-01T08:31:05Z","kind":"github_poc","ref":"https://github.com/onSec-fr/CVE-2021-21985-Checker","stars":2,"title":"CVE-2021-21985 Checker."},{"date":"2021-06-04T01:15:14Z","kind":"github_poc","ref":"https://github.com/daedalus/CVE-2021-21985","stars":2,"title":"CVE-2021-21985 vmware 6.7-9.8 RCE"},{"date":"2021-05-27T02:28:48Z","kind":"github_poc","ref":"https://github.com/bigbroke/CVE-2021-21985","stars":1,"title":"Multiple vulnerabilities in the vSphere Client (HTML5) were privately reported to VMware. Updates and workarounds are available to address these vulnerabilities in affected VMware products."},{"date":"2021-07-08T04:45:19Z","kind":"github_poc","ref":"https://github.com/haidv35/CVE-2021-21985","stars":1,"title":null}],"tier":"exploited"},"has_fix":null,"headline":"VMware vCenter Server Improper Input Validation","id":"CVE-2021-21985","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Known","product":"vCenter Server","requiredAction":"Apply updates per vendor instructions.","vendorProject":"VMware","vulnerabilityName":"VMware vCenter Server Improper Input Validation Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"vmware:cloud_foundation","products":["vmware:cloud_foundation","vmware:vcenter_server"],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Missing authorization in VMware vCenter Server and VMware Cloud Foundation","id":"CVE-2021-21986"},"packages":[],"prev":{"headline":"Missing authorization in VMware vRealize Business for Cloud","id":"CVE-2021-21984"},"products":["VMware vCenter Server and VMware Cloud Foundation"],"published":"2021-05-26","related":[{"cvss_score":9.8,"headline":"VMware vCenter Server Heap-Based Buffer Overflow","id":"CVE-2024-38812","kev_date_added":"2024-11-20","published":"2024-09-17"},{"cvss_score":9.8,"headline":"Broadcom VMware vCenter Server Out-of-bounds Write","id":"CVE-2024-37079","kev_date_added":"2026-01-23","published":"2024-06-18"},{"cvss_score":9.8,"headline":"VMware Workspace ONE Access and Identity Manager Server-Side Template Injection","id":"CVE-2022-22954","kev_date_added":"2022-04-14","published":"2022-04-11"},{"cvss_score":9.8,"headline":"VMware vCenter Server File Upload","id":"CVE-2021-22005","kev_date_added":"2021-11-03","published":"2021-09-23"},{"cvss_score":9.8,"headline":"VMware Server Side Request Forgery in vRealize Operations Manager API","id":"CVE-2021-21975","kev_date_added":"2022-01-18","published":"2021-03-31"},{"cvss_score":9.8,"headline":"VMware vCenter Server Remote Code Execution","id":"CVE-2021-21972","kev_date_added":"2021-11-03","published":"2021-02-24"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-12","vendors":["n/a"]},"summary":"Remote attackers can execute arbitrary commands with unrestricted privileges on the vCenter Server host via the Virtual SAN Health Check plug-in.","url":"https://insights.sbomify.com/CVE-2021-21985/"}