DSA ID: DSA-2019-028
CVE Identifier: CVE-2019-3705, CVE-2019-3706, CVE-2019-3707
Severity: High
Severity Rating: See Details section below of individual CVSS Scores for each CVE
Affected products:
- Dell EMC iDRAC6 versions prior to 2.92 (CVE-2019-3705)
- Dell EMC iDRAC7/iDRAC8 versions prior to 2.61.60.60 (CVE-2019-3705)
- Dell EMC iDRAC9 versions prior to 3.30.30.30, 3.20.21.20, 3.21.24.22, 3.21.26.22, 3.23.23.23, 3.24.24.24, 3.22.22.22, 3.21.25.22 (CVE-2019-3705, CVE-2019-3706, and CVE-2019-3707)
Summary:
Dell EMC iDRAC has been updated to address multiple vulnerabilities which may potentially be exploited to compromise the affected systems.
Details:
- Buffer Overflow Vulnerability (CVE-2019-3705)
Dell EMC iDRAC6 versions prior to 2.92, iDRAC7/iDRAC8 versions prior to 2.61.60.60, and iDRAC9 versions prior to 3.20.21.20, 3.21.24.22, 3.21.26.22 and 3.23.23.23 contain a stack-based buffer overflow vulnerability. An unauthenticated remote attacker may potentially exploit this vulnerability to crash the webserver or execute arbitrary code on the system with privileges of the webserver by sending specially crafted input data to the affected system.
CVSSv3 Base Score 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
- Web Interface Authentication Bypass Vulnerability (CVE-2019-3706)
Dell EMC iDRAC9 versions prior to 3.24.24.24, 3.21.26.22, 3.22.22.22 and 3.21.25.22 contain an authentication bypass vulnerability. A remote attacker may potentially exploit this vulnerability to bypass authentication and gain access to the system by sending specially crafted data to the iDRAC web interface.
CVSSv3 Base Score 8.6 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)
- WS-MAN Authentication Bypass Vulnerability (CVE-2019-3707)
Dell EMC iDRAC9 versions prior to 3.30.30.30 contain an authentication bypass vulnerability. A remote attacker may potentially exploit this vulnerability to bypass authentication and gain access to the system by sending specially crafted input data to the WS-MAN interface.
CVSSv3 Base Score 8.6 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)
Resolution:
The following Dell EMC iDRAC firmware releases contain resolutions to these vulnerabilities:
| iDRAC |
iDRAC firmware version |
| iDRAC9 |
3.20.21.20 |
| 3.21.24.22 |
| 3.21.26.22 |
| 3.23.23.23 |
| |
3.24.24.24 |
| |
3.22.22.22 |
| |
3.21.25.22 |
| |
3.30.30.30 |
| iDRAC8 |
2.61.60.60 |
| iDRAC7 |
2.61.60.60 |
| iDRAC6 |
2.92 |
Dell EMC recommends all customers upgrade at the earliest opportunity.
Dell Best Practices regarding iDRAC:
In addition to maintaining up to date iDRAC firmware, Dell also advises the following:
- iDRACs are not designed nor intended to be placed on or connected to the internet; they are intended to be on a separate management network. Placing or connecting iDRACs directly to the internet could expose the connected system to security and other risks for which Dell is not responsible.
- Along with locating iDRACs on a separate management subnet, users should isolate the management subnet/vLAN with technologies such as firewalls, and limit access to the subnet/vLAN to authorized server administrators.
- Dell recommends that customers take into account any deployment factors that may be relevant to their environment to assess their overall risk.
Link to remedies:
Customers can download iDRAC firmware for
PowerEdge servers. For all other platforms, please select the platform from the
Dell support site.
Dell recommends that all users determine the applicability of this information to their individual situations and take appropriate action. The information set forth herein is provided "as is" without warranty of any kind. Dell disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event, shall Dell or its suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Dell or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation may not apply.