CVE-2021-28191: ASUS BMC's firmware: buffer overflow - Firmware update function
Published Apr 6, 2021
·Updated
The Firmware update function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
Affected Software
88 affected components
ASUS Asmb9-ikvm Firmware=1.11.12
ASUS Asmb9-ikvm
ASUS Rs720a-e9-rs24-e Firmware=1.10.3
ASUS Rs720a-e9-rs24-e
ASUS Rs700a-e9-rs4 Firmware=1.10.0
ASUS Rs700a-e9-rs4
ASUS Rs700-e9-rs4 Firmware=1.09
ASUS Rs700-e9-rs4
ASUS Esc4000 G4x Firmware=1.11.6
ASUS Esc4000 G4x
ASUS Rs700-e9-rs12 Firmware=1.11.5
ASUS Rs700-e9-rs12
ASUS Rs100-e10-pi2 Firmware=1.13.6
ASUS Rs100-e10-pi2
ASUS Rs300-e10-ps4 Firmware=1.13.6
ASUS Rs300-e10-ps4
ASUS Rs300-e10-rs4 Firmware=1.13.6
ASUS Rs300-e10-rs4
ASUS Rs500a-e9-ps4 Firmware=1.14.1
ASUS Rs500a-e9-ps4
ASUS Rs500a-e9-rs4 Firmware=1.14.1
ASUS Rs500a-e9-rs4
ASUS Rs500a-e9 Rs4 U Firmware=1.14.1
ASUS Rs500a-e9 Rs4 U
ASUS E700 G4 Firmware=1.14.1
ASUS E700 G4
ASUS Ws C422 Pro\/se Firmware=1.14.1
ASUS Ws C422 Pro\/se
ASUS Ws X299 Pro\/se Firmware=1.14.1
ASUS Ws X299 Pro\/se
ASUS Z11pa-u12 Firmware=1.15.1
ASUS Z11pa-u12
ASUS Z11pa-u12\/10g-2s Firmware=1.15.1
ASUS Z11pa-u12\/10g-2s
ASUS Knpa-u16 Firmware=1.13.4
ASUS Knpa-u16
ASUS Esc4000 Dhd G4 Firmware=1.13.7
ASUS Esc4000 Dhd G4
ASUS Esc4000 G4 Firmware=1.15.2
ASUS Esc4000 G4
ASUS Rs720q-e9-rs24-s Firmware=1.15.0
ASUS Rs720q-e9-rs24-s
ASUS Rs720q-e9-rs8 Firmware=1.15.0
ASUS Rs720q-e9-rs8
ASUS Rs720q-e9-rs8-s Firmware=1.15.0
ASUS Rs720q-e9-rs8-s
ASUS Z11pa-d8 Firmware=1.14.1
ASUS Z11pa-d8
ASUS Z11pa-d8c Firmware=1.14.1
ASUS Z11pa-d8c
ASUS Rs720-e9-rs24-u Firmware=1.14.3
ASUS Rs720-e9-rs24-u
ASUS Rs720-e9-rs8-g Firmware=1.15.2
ASUS Rs720-e9-rs8-g
ASUS Rs500-e9-ps4 Firmware=1.15.4
ASUS Rs500-e9-ps4
ASUS Pro E800 G4 Firmware=1.14.2
ASUS Pro E800 G4
ASUS Rs500-e9-rs4 Firmware=1.15.4
ASUS Rs500-e9-rs4
ASUS Rs500-e9-rs4-u Firmware=1.15.4
ASUS Rs500-e9-rs4-u
ASUS Rs520-e9-rs12-e Firmware=1.15.3
ASUS Rs520-e9-rs12-e
ASUS Rs520-e9-rs8 Firmware=1.15.3
ASUS Rs520-e9-rs8
ASUS Esc8000 G4 Firmware=1.15.4
ASUS Esc8000 G4
ASUS Esc8000 G4\/10g Firmware=1.15.4
ASUS Esc8000 G4\/10g
ASUS Rs720-e9-rs12-e Firmware=1.15.2
ASUS Rs720-e9-rs12-e
ASUS Ws C621e Sage Firmware=1.15.1
ASUS Ws C621e Sage
ASUS Rs500a-e10-ps4 Firmware=1.15.2
ASUS Rs500a-e10-ps4
ASUS Rs500a-e10-rs4 Firmware=1.15.2
ASUS Rs500a-e10-rs4
ASUS Rs700a-e9-rs12v2 Firmware=1.15.1
ASUS Rs700a-e9-rs12v2
ASUS Rs700a-e9-rs4v2 Firmware=1.15.1
ASUS Rs700a-e9-rs4v2
ASUS Rs720a-e9-rs12v2 Firmware=1.15.2
ASUS Rs720a-e9-rs12v2
ASUS Rs720a-e9-rs24v2 Firmware=1.15.1
ASUS Rs720a-e9-rs24v2
ASUS Z11pr-d16 Firmware=1.15.3
ASUS Z11pr-d16
Remediation
Information
update BMC's firmwares to the following versions:
ESC4000 G4X 1.15.6
RS700-E9-RS12 1.15.4
RS100-E10-PI2 1.15.3
RS300-E10-PS4 1.15.3
RS300-E10-RS4 1.15.3
RS500A-E9-PS4 1.14.2
RS500A-E9-RS4 1.14.2
RS500A-E9 RS4 U 1.14.2
E700 G4 1.14.2
WS C422 PRO/SE 1.14.2
WS X299 PRO/SE 1.14.2
Z11PA-U12 1.15.2
KNPA-U16 1.14.5
ESC4000 DHD G4 1.15.2
ESC4000 G4 1.15.6
RS720Q-E9-RS24-S 1.15.1
RS720Q-E9-RS8 1.15.1
RS720Q-E9-RS8-S 1.15.1
Z11PA-D8 1.15.2
Z11PA-D8C 1.15.2
RS720-E9-RS24-U 1.15.5
RS720-E9-RS8-G 1.15.4
RS500-E9-PS4 1.15.5
Pro E800 G4 1.15.2
RS500-E9-RS4 1.15.5
RS500-E9-RS4-U 1.15.5
RS520-E9-RS12-E 1.15.4
RS520-E9-RS8 1.15.4
ESC8000 G4 1.15.5
ESC8000 G4/10G 1.15.5
RS720-E9-RS12-E 1.15.3
WS C621E SAGE 1.15.3
RS500A-E10-PS4 1.15.3
RS500A-E10-RS4 1.15.3
RS700A-E9-RS12V2 1.15.3
RS700A-E9-RS4V2 1.15.3
RS720A-E9-RS12V2 1.15.3
RS720A-E9-RS24V2 1.15.3
Z11PR-D16 1.15.4
Event History
Apr 6, 2021
CVE Published
via MITRE·05:02 AM
Data Sourced
via MITRE·05:02 AM
RemedyDescriptionSeverityWeakness
Frequently Asked Questions
1
What is the vulnerability ID of this issue?
The vulnerability ID is CVE-2021-28191.
2
What is the severity level of CVE-2021-28191?
The severity level of CVE-2021-28191 is medium with a CVSS score of 4.9.
3
How does the Firmware update function in ASUS BMC's firmware Web management page become vulnerable to buffer overflow?
The vulnerability occurs because the function does not verify the string length entered by users, leading to a buffer overflow.
4
What can remote attackers potentially do due to the buffer overflow vulnerability in ASUS BMC's firmware Web management page?
Remote attackers can exploit the buffer overflow to obtain privileged permission and abnormally terminate the Web service.
5
Where can I find more information about the vulnerability CVE-2021-28191 and any related advisories from ASUS?
You can find more information about CVE-2021-28191 and related advisories from ASUS on their official product security advisory page.