{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27277 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27277 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27277 is a high-severity unsafe deserialization vulnerability in SolarWinds Orion Virtual Infrastructure Monitor, published on 22 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-27277 and fix it if it is affected.\n\nWhat it is: CVE-2021-27277 is a high-severity unsafe deserialization vulnerability in SolarWinds Orion Virtual Infrastructure Monitor, published on 22 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-27277 in the wild and no public exploit code.\n\nAffected product: SolarWinds Orion Virtual Infrastructure Monitor. 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-2021-27277/ (Markdown: https://insights.sbomify.com/CVE-2021-27277/index.md)","id":"CVE-2021-27277","markdown":"https://insights.sbomify.com/CVE-2021-27277/index.md","name":"CVE-2021-27277","record":{"aliases":["GHSA-jv8c-r873-24qg"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"SolarWinds Orion","requires_auth":"low_privilege","summary":"Local attackers can escalate privileges to SYSTEM via unsafe deserialization in the OneTimeJobSchedulerEventsService WCF service.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"orion_platform","vendor":"solarwinds"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the OneTimeJobSchedulerEventsService WCF service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-11955.","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":"Deserialization in Orion Virtual Infrastructure Monitor","id":"CVE-2021-27277","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Path traversal in Desktop","id":"CVE-2021-27278"},"packages":[],"prev":{"headline":"Path traversal in ProSAFE Network Management System","id":"CVE-2021-27276"},"products":["Orion Virtual Infrastructure Monitor"],"published":"2021-04-22","related":[{"cvss_score":9.8,"headline":"SolarWinds Orion Authentication Bypass","id":"CVE-2020-10148","kev_date_added":"2021-11-03","published":"2020-12-29"},{"cvss_score":9.8,"headline":"Privilege escalation in Orion Platform","id":"CVE-2021-27258","kev_date_added":null,"published":"2021-04-14"},{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2021-25274","kev_date_added":null,"published":"2021-02-03"},{"cvss_score":9.8,"headline":"Privilege escalation in n/a","id":"CVE-2019-9546","kev_date_added":null,"published":"2019-03-01"},{"cvss_score":9,"headline":"Cross-site scripting in n/a","id":"CVE-2020-13169","kev_date_added":null,"published":"2020-09-17"},{"cvss_score":8.9,"headline":"ActionPluginBaseView Deserialization of Untrusted Data RCE","id":"CVE-2021-35215","kev_date_added":null,"published":"2021-09-01"},{"cvss_score":8.9,"headline":"Chart Endpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability","id":"CVE-2021-35218","kev_date_added":null,"published":"2021-09-01"}],"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":["SolarWinds"]},"summary":"Local attackers can escalate privileges to SYSTEM via unsafe deserialization in the OneTimeJobSchedulerEventsService WCF service.","url":"https://insights.sbomify.com/CVE-2021-27277/"}