{"id":"CVE-2021-34823","state":"PUBLISHED","title":"The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to re","description":"The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to retrieve files accessible to the logged-on macOS user. When a remote user sends a crafted HTTP request to the server, it triggers a code path that will download a configuration file from a specified remote machine over HTTP. There is an XXE flaw in processing of this configuration file that allows reading local (to macOS) files and uploading them to remote machines.","publishedAt":"2021-08-13T16:48:09.000Z","updatedAt":"2024-08-04T00:26:54.032Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://www.trustwave.com/en-us/resources/security-resources/security-advisories/","https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:38.863Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/34xxx/CVE-2021-34823.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-34823","state":"PUBLISHED","datePublished":"2021-08-13T16:48:09.000Z","dateUpdated":"2024-08-04T00:26:54.032Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-06-17T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to retrieve files accessible to the logged-on macOS user. When a remote user sends a crafted HTTP request to the server, it triggers a code path that will download a configuration file from a specified remote machine over HTTP. There is an XXE flaw in processing of this configuration file that allows reading local (to macOS) files and uploading them to remote machines."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/","tags":["x_refsource_MISC"]},{"url":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-08-13T16:48:09.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-34823","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to retrieve files accessible to the logged-on macOS user. When a remote user sends a crafted HTTP request to the server, it triggers a code path that will download a configuration file from a specified remote machine over HTTP. There is an XXE flaw in processing of this configuration file that allows reading local (to macOS) files and uploading them to remote machines."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/","refsource":"MISC","url":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/"},{"name":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105","refsource":"MISC","url":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T00:26:54.032Z"}}]}}}