CVE-2021-28190: ASUS BMC's firmware: buffer overflow - Generate new certificate function

Published Apr 6, 2021

Updated

The specific function in ASUS BMC’s firmware Web management page (Generate new certificate function) 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

What is the severity of CVE-2021-28190?

CVE-2021-28190 has been classified as a critical severity vulnerability due to its potential exploitation for remote code execution.

How do I fix CVE-2021-28190?

To mitigate CVE-2021-28190, update the affected ASUS BMC firmware to the latest version provided by ASUS.

What systems are affected by CVE-2021-28190?

CVE-2021-28190 affects specific versions of ASUS BMC firmware across various hardware models including the Asus Asmb9-ikvm and multiple RS and Esc series firmware versions.

What type of vulnerability is CVE-2021-28190?

CVE-2021-28190 is a buffer overflow vulnerability caused by improper input validation in the certificate generation function.

Can CVE-2021-28190 be exploited remotely?

Yes, CVE-2021-28190 can be exploited remotely by attackers with access to the firmware's web management interface.