InfoSecBulletin Cybersecurity for mankind
ASUS has released new firmware for several router models to address security vulnerabilities, including critical ones like CVE-2022-26376 and CVE-2018-1160, which can lead to denial-of-service attacks and code execution.
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- CVE-2022-35401 (CVSS score: 8.1) – An authentication bypass vulnerability that could permit an attacker to send malicious HTTP requests to gain full administrative access to the device.
- CVE-2022-38105 (CVSS score: 7.5) – An information disclosure vulnerability that could be exploited to access sensitive information by sending specially-crafted network packets.
- CVE-2022-38393 (CVSS score: 7.5) – A denial-of-service (DoS) vulnerability that could be triggered by sending a specially-crafted network packet.
- CVE-2022-46871 (CVSS score: 8.8) – The use of an out-of-date libusrsctp library that could open targeted devices to other attacks.
- CVE-2023-28702 (CVSS score: 8.8) – A command injection flaw that could be exploited by a local attacker to execute arbitrary system commands, disrupt system, or terminate service.
- CVE-2023-28703 (CVSS score: 7.2) – A stack-based buffer overflow vulnerability that could be exploited by an attacker with admin privileges to execute arbitrary system commands, disrupt system, or terminate service.
- CVE-2023-31195 (CVSS score: N/A) – An adversary-in-the-middle (AitM) flaw that could lead to a hijack of a user’s session.
The company advises customers to update their devices immediately or restrict WAN access until the devices are secured, urging them to create strong passwords and follow security measures. BleepingComputer reports:The first is a critical memory corruption weakness in the Asuswrt firmware for Asus routers that could let attackers trigger denial-of-services states or gain code execution. The other critical patch is for an almost five-year-old CVE-2018-1160 bug caused by an out-of-bounds write Netatalk weakness that can also be exploited to gain arbitrary code execution on unpatched devices.
“Please note, if you choose not to install this new firmware version, we strongly recommend disabling services accessible from the WAN side to avoid potential unwanted intrusions. These services include remote access from WAN, port forwarding, DDNS, VPN server, DMZ, port trigger,” ASUS warned in a security advisory published today. “We strongly encourage you to periodically audit both your equipment and your security procedures, as this will ensure that you will be better protected.”
The list of impacted devices includes the following models: GT6, GT-AXE16000, GT-AX11000 PRO, GT-AX6000, GT-AX11000, GS-AX5400, GS-AX3000, XT9, XT8, XT8 V2, RT-AX86U PRO, RT-AX86U, RT-AX86S, RT-AX82U, RT-AX58U, RT-AX3000, TUF-AX6000, and TUF-AX5400.
