{"id":"CVE-2011-0228","aliases":["EUVD-2011-0254","GHSA-6mm9-r7wf-jwhj"],"status":"published","title":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the...","description":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.066,"percentile":0.93891,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2011-08-29T20:00:00Z","modified":"2026-06-16T23:27:02Z","exploits":[{"source":"pocgithub","id":"jan0/isslfix","title":"jan0/isslfix","date":"2011-07-31","url":"https://github.com/jan0/isslfix"}],"products":[{"vendor":"apple","product":"iphone_os"}],"references":[{"url":"http://lists.apple.com/archives/security-announce/2011//Jul/msg00005.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"https://www.trustwave.com/spiderlabs/advisories/TWSL2011-007.txt","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/48877","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://support.apple.com/kb/HT4824","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://secunia.com/advisories/45369","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/518982/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://lists.apple.com/archives/security-announce/2011//Jul/msg00004.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"http://support.apple.com/kb/HT4825","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://securityreason.com/securityalert/8361","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"http://securitytracker.com/id?1025837","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-0228"},{"url":"https://github.com/advisories/GHSA-6mm9-r7wf-jwhj"}],"sources":{"cve":[{"id":"CVE-2011-0228","description":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.","status":"published","published":"2011-08-29T20:00:00Z","modified":"2024-08-06T21:43:15.409Z","updated_at":"2026-11-02T14:35:39.079595Z"}],"euvd":[{"id":"EUVD-2011-0254","description":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.","status":"published","published":"2011-08-29T20:00:00Z","modified":"2024-08-06T21:43:15Z","updated_at":"2026-11-03T01:56:01.007367Z"}],"ghsa":[{"id":"GHSA-6mm9-r7wf-jwhj","title":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the...","description":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.","status":"published","published":"2022-05-14T02:41:54Z","modified":"2023-02-02T05:06:23Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:52:17.685441Z"}],"nvd":[{"id":"CVE-2011-0228","description":"The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.","status":"published","published":"2011-08-29T20:55:00.753Z","modified":"2026-06-16T23:27:02.947Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:09.988332Z"}]}}