Vulnerability CVE-2015-4499
Published: 2015-09-13   Modified: 2015-09-14

Description:
Util.pm in Bugzilla 2.x, 3.x, and 4.x before 4.2.15, 4.3.x and 4.4.x before 4.4.10, and 5.x before 5.0.1 mishandles long e-mail addresses during account registration, which allows remote attackers to obtain the default privileges for an arbitrary domain name by placing that name in a substring of an address, as demonstrated by truncation of an @mozilla.com.example.com address to an @mozilla.com address.

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Mozilla -> Bugzilla 

 References:
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168725.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169946.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169983.html
http://packetstormsecurity.com/files/133578/Bugzilla-Unauthorized-Account-Creation.html
http://seclists.org/bugtraq/2015/Sep/48
http://seclists.org/bugtraq/2015/Sep/49
http://www.securitytracker.com/id/1033542
https://bug1202447.bmoattachments.org/attachment.cgi?id=8657861
https://bugzilla.mozilla.org/show_bug.cgi?id=1202447
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