Security Advisory – Unsignature Verification Vulnerability In Some Inspur BMC
- SA No: INSPUR-SA-202012-001
- Initial Release Date: 2020-12-04 16:54:59
- last Release Date: 2021-03-02 11:14:17
- Source: Reported by Tencent Blade Team clarkhe
- Potential Security Impact: Controlling The BMC System
Vulnerability Summary
The Baseboard Management Controller (BMC) program of INSPUR server is weak in checking the firmware and lacks the signature verification mechanism, the attacker who obtains the administrator’s rights can control the BMC by inserting malicious code into the firmware program and bypassing the current verification mechanism to upgrade the BMC.
Vulnerability Scoring Details
| CVE | V3.1 Vector(Base) | Base Score | V3.1 Vector(Temporal Score) | Temporal Score |
| CVE-2020-26122 | AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | 6.6 | E:P/RL:O/RC:C | 5.9 |
Fixed Product Version
| Product | BMC Update Version |
| NF8480M5 | NF8480M5_BMC_1.19.34_Standard_20201105 |
| NF8260M5 | NF8260M5_BMC_1.19.34_Standard_20201105 |
| NS5162M5 | NS5162M5_BMC_4.5.3_Standard_20201029 |
| NS5488M5 | NS548xM5_BMC_1.19.33_Standard_20201109 |
| NS5484M5 | |
| NS5482M5 | |
| NF5280M5 | NF5280M5_BMC_4.26.6_Standard_20201030 |
| NF5468M5 | NF5468M5_BMC_1.18.51_Standard_20201106 |
| NF5488M5-D | NF5888M5_BMC_1.18.51_Standard_20201106 |
| NF5180M5 | NF5180M5_BMC_4.18.2_Standard_20201104 |
| NF5270M5 | NF5270M5_BMC_4.9.1_Standard_20201031 |
| NF5260M5 | NF5260M5_BMC_3.8.0_Standard_20201111 |
| NF5266M5 | NF5266M5_BMC_3.21.3_standard_20201109 |
| NF5466M5 | NF5466M5_BMC_4.28.0_Standard_20201105 |
| NF5486M5 | NF5486M5_BMC_3.22.0_standard_20201114 |
Resolution
Download your product’s corresponding BMC image and perform the BMC upgrade. Please visit the Support Center site for updates on the applicable products.
The current release of BMC version is an intermediate transition version. In order to reduce the impact on the use of customer operation and maintenance scripts or software tools, this version supports the old and new upgrade interfaces at the same time. We plan to disable the old upgrade interface in May.
Revision History
2020-12-04 V1.0 INITIAL
References
Support
For issues about implementing the recommendations of this Security Bulletin, contact normal Inspur Services Support channel. For other issues about the content of this Security Bulletin, send e-mail to sec@inspur.com.
Subscribe
To initiate a subscription to receive future Inspur Security Bulletin via Email:Subscribe to Security Bulletins
Report
To report a potential security vulnerability for Inspur product: Reporting a Security Vulnerability
Declaration
Inspur shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided “as is” without warranty of any kind. To the extent permitted by law, Inspur disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement. In no event shall Inspur or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Inspur is entitled to amend or update this document from time to time.