CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:A/AC:M/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
Percentile
17.2%
U by BB&T for iOS, version 1.5.4 and earlier, fails to properly validate SSL certificates provided by HTTPS connections, which may enable an attacker to conduct man-in-the-middle (MITM) attacks.
CWE-295: Improper Certificate Validation - CVE-2016-6550
U by BB&T is a banking application. On iOS devices, the app fails to properly validate SSL certificates provided by HTTPS connections, which means that an attacker in the position to perform MITM attacks may be able to obtain sensitive account information such as login credentials.
An attacker on the same network as the iOS device may be able to view or modify network traffic that should have been protected by HTTPS, which may lead to the exposure of sensitive account information, including login credentials.
Update the app to the latest version
Version 1.5.5 appears to have addressed the issue.
Do not use affected versions of the application
The features and services provided by the application are likely accessible via the BB&T banking web site. By using a web browser to access those resources, you may avoid situations where SSL is not validated.
Avoid untrusted networks
Avoid using untrusted networks, including public WiFi. Using your device on an untrusted network increases the chance of falling victim to a MITM attack.
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Notified: August 16, 2016 Updated: September 22, 2016
Affected
We have not received a statement from the vendor.
We are not aware of further vendor information regarding this vulnerability.
Group | Score | Vector |
---|---|---|
Base | 7.8 | AV:A/AC:L/Au:N/C:C/I:C/A:N |
Temporal | 7 | E:F/RL:W/RC:C |
Environmental | 1.8 | CDP:ND/TD:L/CR:ND/IR:ND/AR:ND |
Thanks to the reporter who wishes to remain anonymous.
This document was written by Joel Land.
CVE IDs: | CVE-2016-6550 |
---|---|
Date Public: | 2016-09-30 Date First Published: |
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:A/AC:M/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
Percentile
17.2%