BlackBerry 4.x Dialog Box Certificate Mismatch

Medium Nessus Network Monitor Plugin ID 5189

Synopsis

The remote host is affected by a certificate mismatch vulnerability.

Description

The included browser in versions of BlackBerry OS 4.5.0 before 4.5.0.173, 4.6.0 before 4.6.0.303, 4.6.1 before 4.6.1.309, 4.7.0 before 4.7.0.179, and 4.7.1 before 4.7.1.57 does not properly handle "hidden" characters including a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows remote man-in-the-middle attackers to deceive a user into believing they are accessing a trusted site.

Solution

Upgrade the BlackBerry to 4.7.1.57, or later. If 4.7.x cannot be installed, versions 4.5.0.173, 4.6.0.303, 4.6.1.309, and 4.7.0.179 are also patched for this vulnerability.

See Also

http://www.nessus.org/u?a6845c50

http://www.blackberry.com/updates

Plugin Details

Severity: Medium

ID: 5189

Published: 2009/09/28

Modified: 2016/01/19

Dependencies: 4545

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSSv3

Base Score: 5.6

Temporal Score: 5.4

Vector: CVSS3#AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:blackberry:blackberry_os

Patch Publication Date: 2009/09/28

Vulnerability Publication Date: 2009/09/28

Reference Information

CVE: CVE-2009-3477

BID: 36528