High severity · published Apr 7, 2022
CVE-2022-23970
ASUS RT-AX56U’s update_json function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter
8.1
CVSS
0.5%
EPSS
No
On KEV
Description
ASUS RT-AX56U’s update_json function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated LAN attacker can overwrite a system file by uploading another file with the same file name, which results in service disruption.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RF
Rt-ax56u Firmware · Asus
3.0.0.4.386.45898 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23970
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23970
Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-5784-68aa3-1.html
More from Rt-ax56u Firmware
9.8
CVE-2022-26376
A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New Gen prior to 386.7
9.8
CVE-2021-41435
A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-AX56U_V2, RT-AX58U, RT-AX82U, RT-AX82U GUNDAM EDITION,…
9.0
CVE-2021-43702
ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS)
8.8
CVE-2021-40556
A stack overflow vulnerability exists in the httpd service in ASUS RT-AX56U Router Version 3.0.0.4.386.44266
8.8
CVE-2022-23973
ASUS RT-AX56U’s user profile configuration function is vulnerable to stack-based buffer overflow due to insufficient validation for parameter length