CVE-2021-22887 : A vulnerability in the BIOS of Pulse Secure (PSA-Series Hardware) models PSA5000

A vulnerability in the BIOS of Pulse Secure (PSA-Series Hardware) models PSA5000 and PSA7000 could allow an attacker to compromise BIOS firmware. This vulnerability can be exploited only as part of an attack chain. Before an attacker can compromise the BIOS, they must exploit the device.

Published 2021-03-16 16:15:14

Updated 2021-03-22 19:43:23

Source HackerOne

View at NVD, CVE.org

Products affected by CVE-2021-22887

Supermicro » X10sl7-f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10sl7-f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10sl7-f » Version: N/A
Supermicro » X10sla-f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10sla-f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10sla-f » Version: N/A
Supermicro » X10slh-f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10slh-f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10slh-f » Version: N/A
Supermicro » X10sll-f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10sll-f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10sll-f » Version: N/A
Supermicro » X10sll-sf Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10sll-sf_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10sll-sf » Version: N/A
Supermicro » X10sll-s Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10sll-s_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10sll-s » Version: N/A
Supermicro » X10slm-f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10slm-f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10slm-f » Version: N/A
Supermicro » X10slm+-f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10slm\+-f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10slm+-f » Version: N/A
Supermicro » X10sll+f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10sll\+f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10sll+f » Version: N/A
Supermicro » X10slm+ln4f Firmware
Versions before (<) 3.4
cpe:2.3:o:supermicro:x10slm\+ln4f_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Supermicro » X10slm+ln4f » Version: N/A
Pulsesecure » Psa-5000 Firmware » Version: N/A
cpe:2.3:o:pulsesecure:psa-5000_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Pulsesecure » Psa-5000 » Version: N/A
Pulsesecure » Psa-7000 Firmware » Version: N/A
cpe:2.3:o:pulsesecure:psa-7000_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Pulsesecure » Psa-7000 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-22887

EPSS FAQ

0.04%

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

~ 10 %

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

CVSS scores for CVE-2021-22887

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:P/A:N	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
2.3	LOW	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N	0.8	1.4	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2021-22887

CWE-506 Embedded Malicious Code

The product contains code that appears to be malicious in nature.

Assigned by: support@hackerone.com (Secondary)

References for CVE-2021-22887

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44712

Pulse Security Advisory: SA44712 - 2021-02: Out-of-Cycle Advisory: Pulse Secure response to BIOS Trickboot Vulnerability
Patch;Vendor Advisory
https://www.supermicro.com/en/support/security/Trickbot

Supermicro’s response to Trickboot vulnerability, March 2021 | Supermicro
Third Party Advisory

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Vulnerability Details : CVE-2021-22887

Products affected by CVE-2021-22887

Exploit prediction scoring system (EPSS) score for CVE-2021-22887

CVSS scores for CVE-2021-22887

CWE ids for CVE-2021-22887

References for CVE-2021-22887