{"id":"CVE-2010-0744","aliases":["EUVD-2010-0770","GHSA-p9f4-9pfr-g2fp"],"status":"published","title":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the...","description":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01305,"percentile":0.70731,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2010-04-20T15:00:00Z","modified":"2026-06-16T23:16:45Z","products":[{"vendor":"alvaro","product":"alvaros_messenger"}],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041046.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/?view=log\u0026pathrev=11991","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2010/03/10/4","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://secunia.com/advisories/39796","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/sip.tcl?r1=11953\u0026r2=11991\u0026pathrev=11991","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/proxy.tcl?r1=11886\u0026r2=11991\u0026pathrev=11991","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/35507","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572818","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2010/04/01/4","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://seclists.org/bugtraq/2009/Jun/239","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.opensource-archive.org/showthread.php?p=183821","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/soap.tcl?r1=11891\u0026r2=11991\u0026pathrev=11991","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://secunia.com/advisories/35621","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2010/1109","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041079.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-0744"},{"url":"https://github.com/advisories/GHSA-p9f4-9pfr-g2fp"}],"sources":{"cve":[{"id":"CVE-2010-0744","description":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.","status":"published","published":"2010-04-20T15:00:00Z","modified":"2024-08-07T00:59:38.806Z","updated_at":"2026-11-02T14:33:29.990758Z"}],"euvd":[{"id":"EUVD-2010-0770","description":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.","status":"published","published":"2010-04-20T15:00:00Z","modified":"2024-08-07T00:59:38Z","updated_at":"2026-11-03T01:39:44.13762Z"}],"ghsa":[{"id":"GHSA-p9f4-9pfr-g2fp","title":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the...","description":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.","status":"published","published":"2022-05-02T06:15:13Z","modified":"2023-02-01T05:00:39Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:49:34.37252Z"}],"nvd":[{"id":"CVE-2010-0744","description":"aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.","status":"published","published":"2010-04-20T15:30:00.317Z","modified":"2026-06-16T23:16:45.96Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:01:45.97784Z"}]}}