{"id":"CVE-2011-2883","state":"PUBLISHED","title":"The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validat","description":"The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted certificate.","publishedAt":"2011-07-21T23:00:00.000Z","updatedAt":"2024-09-17T01:42:00.092Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928"],"weaknesses":[],"ingestedAt":"2026-10-29T19:39:59.387Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2011/2xxx/CVE-2011-2883.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2011-2883","state":"PUBLISHED","datePublished":"2011-07-21T23:00:00.000Z","dateUpdated":"2024-09-17T01:42:00.092Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2011-07-21T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted certificate."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928","name":"20110714 Citrix Access Gateway ActiveX Arbitrary Libary Loading Vulnerability","tags":["third-party-advisory","x_refsource_IDEFENSE"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2011-07-21T23:00:00.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2011-2883","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 NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted certificate."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"20110714 Citrix Access Gateway ActiveX Arbitrary Libary Loading Vulnerability","refsource":"IDEFENSE","url":"http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928","name":"20110714 Citrix Access Gateway ActiveX Arbitrary Libary Loading Vulnerability","tags":["third-party-advisory","x_refsource_IDEFENSE","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-06T23:15:31.606Z"}}]}}}