medium
6.8
CWE
22
Advisory Published
Updated

CVE-2021-28209: ASUS BMC's firmware: path traversal - Delete video file function

First published: Tue Apr 06 2021(Updated: )

The specific function in ASUS BMC’s firmware Web management page (Delete video file function) does not filter the specific parameter. As obtaining the administrator permission, remote attackers can use the means of path traversal to access system files.

Credit: twcert@cert.org.tw

Affected SoftwareAffected VersionHow to fix
Asus ASMB9-IKVM=1.11.12
Asus Asmb9-ikvm Firmware
Asus RS720A-E9-RS24-E=1.10.3
Asus Rs720a-e9-rs24-e Firmware
Asus RS700A-E9-RS4V2=1.10.0
Asus RS700A-E9-RS4V2
Asus RS700-E9-RS4=1.09
Asus Rs700-e9-rs4 Firmware
Asus Esc4000 G4x Firmware=1.11.6
Asus Esc4000 G4x Firmware
Asus RS700-E9-RS12=1.11.5
Asus RS700-E9-RS12
Asus RS100-E10-PI2=1.13.6
Asus RS100-E10-PI2
Asus RS300-E10-PS4=1.13.6
Asus RS300-E10-PS4 Firmware
Asus RS300-E10-RS4=1.13.6
Asus RS300-E10-RS4 Firmware
Asus RS500A-E9-PS4=1.14.1
Asus RS500-E9-PS4
Asus RS500A-E9 RS4 U=1.14.1
Asus RS500A-E9 RS4 U
Asus RS500A-E9-PS4=1.14.1
Asus RS500A-E9 RS4 U Firmware
Asus E700 G4=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 Firmware
Asus Z11pa-u12/10g-2s Firmware=1.15.1
Asus Z11pa-u12/10g-2s
Asus Knpa-u16=1.13.4
Asus Knpa-u16 Firmware
Asus Esc4000 Dhd G4=1.13.7
Asus Esc4000 Dhd G4
Asus Esc4000 G4=1.15.2
Asus Esc4000 G4 Firmware
Asus RS720Q-E9-RS24-S Firmware=1.15.0
Asus RS720Q-E9-RS24-S Firmware
Asus RS720Q-E9-RS8=1.15.0
Asus RS720Q-E9-RS8 Firmware
Asus RS720Q-E9-RS8-S=1.15.0
Asus Rs720q-e9-rs24-s
Asus Z11pa-d8=1.14.1
Asus Z11pa-d8 Firmware
Asus Z11pa-d8c Firmware=1.14.1
Asus Z11pa-d8c Firmware
Asus RS720-E9-RS24-U=1.14.3
Asus RS720-E9-RS24-U
Asus RS720-E9-RS8-G=1.15.2
Asus Rs720-e9-rs8-g Firmware
Asus RS500A-E9-PS4=1.15.4
Asus RS500-E9-PS4
Asus Pro E800 G4=1.14.2
Asus Pro E800 G4
Asus RS500-E9-RS4 Firmware=1.15.4
Asus RS500-E9-RS4 Firmware
Asus Rs500-e9-rs4=1.15.4
Asus Rs500-e9-rs4
Asus RS520-E9-RS12-E=1.15.3
Asus RS520-E9-RS12-E Firmware
Asus RS520-E9-RS8=1.15.3
Asus Rs520-e9-rs8 Firmware
Asus Esc8000 G4/10g Firmware=1.15.4
Asus Esc8000 G4/10g Firmware
Asus Esc8000 G4/10g Firmware=1.15.4
Asus Esc8000 G4/10g
Asus RS520-E9-RS12-E Firmware=1.15.2
Asus RS720-E9-RS12-E Firmware
Asus WS C621E Sage=1.15.1
Asus Ws C621e Sage Firmware
Asus RS500A-E10-PS4=1.15.2
Asus Rs500a-e10-ps4 Firmware
Asus RS500A-E10-RS4=1.15.2
Asus RS500A-E10-RS4
Asus RS700A-E9-RS12V2=1.15.1
Asus RS720A-E9-RS12V2
Asus RS700A-E9-RS4V2=1.15.1
Asus RS700A-E9-RS4V2 Firmware
Asus RS720A-E9-RS12V2=1.15.2
Asus RS720A-E9-RS12V2
Asus Rs720a-e9-rs24v2=1.15.1
Asus Rs720a-e9-rs24v2 Firmware
Asus Z11pr-d16=1.15.3
Asus Z11pr-d16 Firmware

Remedy

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

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-28209?

    CVE-2021-28209 is classified as a critical vulnerability due to its potential for remote exploitation.

  • How do I fix CVE-2021-28209?

    To mitigate CVE-2021-28209, you should update the ASUS BMC firmware to the latest version that addresses this vulnerability.

  • What systems are affected by CVE-2021-28209?

    CVE-2021-28209 affects specific versions of ASUS BMC firmware, including versions such as 1.11.12, 1.10.3, and others listed in the advisory.

  • Can CVE-2021-28209 allow unauthorized file access?

    Yes, CVE-2021-28209 can be exploited by attackers to gain unauthorized access to system files through path traversal.

  • What is the impact of CVE-2021-28209 on system security?

    CVE-2021-28209 poses a significant risk as it allows remote attackers with admin permissions to manipulate sensitive files.

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