{"id":"CVE-2021-36766","state":"PUBLISHED","title":"Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logg","description":"Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logging() method. User input passed through the logFile request parameter is not properly sanitized before being used in a call to the file_exists() PHP function. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code.","publishedAt":"2021-07-27T05:38:42.000Z","updatedAt":"2024-08-04T01:01:59.251Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://hackerone.com/reports/1063039","http://seclists.org/fulldisclosure/2021/Jul/36","http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:44.655Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/36xxx/CVE-2021-36766.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-36766","state":"PUBLISHED","datePublished":"2021-07-27T05:38:42.000Z","dateUpdated":"2024-08-04T01:01:59.251Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-07-16T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logging() method. User input passed through the logFile request parameter is not properly sanitized before being used in a call to the file_exists() PHP function. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://hackerone.com/reports/1063039","tags":["x_refsource_MISC"]},{"url":"http://seclists.org/fulldisclosure/2021/Jul/36","name":"20210719 [KIS-2021-05] Concrete5 <= 8.5.5 (Logging Settings) Phar Deserialization Vulnerability","tags":["mailing-list","x_refsource_FULLDISC"]},{"url":"http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-07-27T19:39:35.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-36766","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":"Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logging() method. User input passed through the logFile request parameter is not properly sanitized before being used in a call to the file_exists() PHP function. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://hackerone.com/reports/1063039","refsource":"MISC","url":"https://hackerone.com/reports/1063039"},{"name":"20210719 [KIS-2021-05] Concrete5 <= 8.5.5 (Logging Settings) Phar Deserialization Vulnerability","refsource":"FULLDISC","url":"http://seclists.org/fulldisclosure/2021/Jul/36"},{"name":"http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html","refsource":"MISC","url":"http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://hackerone.com/reports/1063039","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2021/Jul/36","name":"20210719 [KIS-2021-05] Concrete5 <= 8.5.5 (Logging Settings) Phar Deserialization Vulnerability","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://packetstormsecurity.com/files/163564/Concrete5-8.5.5-Phar-Deserialization.html","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T01:01:59.251Z"}}]}}}