CVE-2020-26122 : Inspur NF5266M5 through 3.21.2 and other server M5 devices allow remote code exe

Inspur NF5266M5 through 3.21.2 and other server M5 devices allow remote code execution via administrator privileges. 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.

Published 2020-12-07 16:15:12

Updated 2020-12-08 17:21:30

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2020-26122

Inspur » Nf8480m5 Firmware
Versions before (<) 1.19.34
cpe:2.3:o:inspur:nf8480m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf8480m5 » Version: N/A
Inspur » Nf8260m5 Firmware
Versions before (<) 1.19.34
cpe:2.3:o:inspur:nf8260m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf8260m5 » Version: N/A
Inspur » Ns5162m5 Firmware
Versions before (<) 4.5.3
cpe:2.3:o:inspur:ns5162m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Ns5162m5 » Version: N/A
Inspur » Ns5488m5 Firmware
Versions before (<) 1.19.33
cpe:2.3:o:inspur:ns5488m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Ns5488m5 » Version: N/A
Inspur » Ns5484m5 Firmware
Versions before (<) 1.19.33
cpe:2.3:o:inspur:ns5484m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Ns5484m5 » Version: N/A
Inspur » Ns5482m5 Firmware
Versions before (<) 1.19.33
cpe:2.3:o:inspur:ns5482m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Ns5482m5 » Version: N/A
Inspur » Nf5280m5 Firmware
Versions before (<) 4.26.6
cpe:2.3:o:inspur:nf5280m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5280m5 » Version: N/A
Inspur » Nf5468m5 Firmware
Versions before (<) 1.18.51
cpe:2.3:o:inspur:nf5468m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5468m5 » Version: N/A
Inspur » Nf5488m5-d Firmware
Versions before (<) 1.18.51
cpe:2.3:o:inspur:nf5488m5-d_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5488m5-d » Version: N/A
Inspur » Nf5180m5 Firmware
Versions before (<) 4.18.2
cpe:2.3:o:inspur:nf5180m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5180m5 » Version: N/A
Inspur » Nf5270m5 Firmware
Versions before (<) 4.9.1
cpe:2.3:o:inspur:nf5270m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5270m5 » Version: N/A
Inspur » Nf5260m5 Firmware
Versions before (<) 3.8.0
cpe:2.3:o:inspur:nf5260m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5260m5 » Version: N/A
Inspur » Nf5266m5 Firmware
Versions before (<) 3.21.3
cpe:2.3:o:inspur:nf5266m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5266m5 » Version: N/A
Inspur » Nf5466m5 Firmware
Versions before (<) 4.28.0
cpe:2.3:o:inspur:nf5466m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5466m5 » Version: N/A
Inspur » Nf5486m5 Firmware
Versions before (<) 3.22.0
cpe:2.3:o:inspur:nf5486m5_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Inspur » Nf5486m5 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-26122

EPSS FAQ

0.66%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 69 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-26122

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	1.2	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-26122

CWE-347 Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-26122

https://en.inspur.com/en/security_bulletins/security_advisory2/2543921/index.html

Vendor Advisory
https://en.inspur.com/en/2487134/index.html

Broken Link

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Vulnerability Details : CVE-2020-26122

Products affected by CVE-2020-26122

Exploit prediction scoring system (EPSS) score for CVE-2020-26122

CVSS scores for CVE-2020-26122

CWE ids for CVE-2020-26122

References for CVE-2020-26122