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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
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


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


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