CVE Feed

    Dashboard / CVE / CVE-2021-41437

    CVE-2021-41437

    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.

    Published:Sep 26, 2022
    Last Modified:May 21, 2025
    EPS:Sep 26, 2022
    EPSS Score:0.00969
    CVSS Score:6.5

    Affected Products

    Vendor
    Asus
    Product
    Rt-ax88u
    Vendor
    Asus
    Product
    Rt-ax88u Firmware

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-105 HTTP Request Splitting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-273 HTTP Response Smuggling
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-34 HTTP Response Splitting
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-51 Poison Web Service Registry
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-6 Argument Injection
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-83 XPath Injection
    CAPEC-84 XQuery Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2024-0401 (CVSS 7.2) — ASUS routers supporting custom OpenVPN profiles are vulnerable to a code execution vulnerability. An authentic…
    CVE-2023-41349 (CVSS 8.8) — ASUS router RT-AX88U has a vulnerability of using externally controllable format strings within its Advanced …
    CVE-2023-34360 (CVSS 8.2) — A stored cross-site scripting (XSS) issue was discovered within the Custom User Icons functionality of ASUS RT…
    CVE-2023-34359 (CVSS 7.5) — ASUS RT-AX88U's httpd is subject to an unauthenticated DoS condition. A remote attacker can send a specially c…
    CVE-2023-34358 (CVSS 7.5) — ASUS RT-AX88U's httpd is subject to an unauthenticated DoS condition. A remote attacker can send a specially c…
    CVE-2021-43702 (CVSS 9) — ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS). The ASUS router admin panel does n…
    CVE-2022-26674 (CVSS 9.8) — ASUS RT-AX88U has a Format String vulnerability, which allows an unauthenticated remote attacker to write to a…
    CVE-2022-26673 (CVSS 5.4) — ASUS RT-AX88U has insufficient filtering for special characters in the HTTP header parameter. A remote attacke…
    CVE-2021-41435 (CVSS 9.8) — A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-A…
    CVE-2021-41436 (CVSS 7.5) — An HTTP request smuggling in web application in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High