Vulnerability Name:

CVE-2021-41437 (CCN-237369)

Assigned:2021-09-20
Published:2022-09-24
Updated:2022-09-27
Summary:An HTTP response splitting attack in web application in ASUS RT-AX88U before v3.0.0.4.388.20558 allows an attacker to craft a specific URL that if an authenticated victim visits it, the URL will give access to the cloud storage of the attacker.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-436
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-41437

Source: XF
Type: UNKNOWN
asus-cve202141437-info-disc(237369)

Source: CCN
Type: GitHub Web site
HTTP Response splitting (CVE-2021-41437)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/efchatz/easy-exploits/tree/main/Web/ASUS/CVE-2021-41437

Source: CCN
Type: ASUS Web site
RT-AX88U

Source: CONFIRM
Type: Patch, Product, Vendor Advisory
https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AX88U/HelpDesk_BIOS/

Vulnerable Configuration:Configuration 1:
  • cpe:/o:asus:rt-ax88u_firmware:*:*:*:*:*:*:*:* (Version < 3.0.0.4.388.20558)
  • AND
  • cpe:/h:asus:rt-ax88u:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:asus:rt-ax88u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    asus rt-ax88u firmware *
    asus rt-ax88u -
    asus rt-ax88u firmware 3.0.0.4.386.46061