CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
67.9%
Synology NAS servers DS107, DS116, and DS213, use default credentials.
CWE-255**: Credentials Management -**CVE-2016-6554
Synology NAS servers DS107, firmware version 3.1-1639
and prior, and DS116, DS213, firmware versions prior to 5.2-5644-1
, use non-random default credentials of: guest:(blank)
and admin:(blank)
. A remote network attacker can gain privileged access to a vulnerable device.
A remote attacker can take complete control of a device using default admin credentials.
Apply an Update
Firmware version 5.2-5644-1
for the DS116 and DS213 will require a strong password for the default admin account.
For the DS107 and for guest accounts, implement the following workarounds.
Disable Default Accounts
The latest firmware versions for all affected devices allow the default guest account to be disabled.
The latest firmware for the DS116 and DS213 allow the default admin account to be disabled.
Use strong passwords
Use of strong, unique passwords can help reduce the efficacy of brute force password guessing attacks.
Restrict access
As a general good security practice, only allow trusted hosts to connect to the device.
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Notified: October 12, 2016 Updated: October 13, 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 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
Temporal | 6.2 | E:F/RL:W/RC:ND |
Environmental | 4.7 | CDP:N/TD:M/CR:ND/IR:ND/AR:ND |
Thanks to Ory Segal and Ezra Caltum for reporting this vulnerability.
This document was written by Trent Novelly.
CVE IDs: | CVE-2016-6554 |
---|---|
Date Public: | 2016-10-20 Date First Published: |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
67.9%