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thomson modem router offer a seamless data mediation within a shared computer network and enhance the productivity on a number of counts. "Ethernet/Wireless Cable Modem/Router >",Īrticle updated with a more accurate list of affected models, provided by the research team.About products and suppliers: Set up a flawless data transmission and connectivity at your home or office with the best thomson modem router from. "Technicolor TC7200.d1I Wireless Gateway ", "ARRIS DOCSIS 3.0 / Touchstone Wideband Gateway >", "Cisco DPC3928SL DOCSIS 3.0 1-PORT Voice Gateway >", "Netwave Docsis 3.0 Cable Modem MNG6300 >", "ARRIS Euro-DOCSIS 2.0 / Euro-PacketCable 1.0 Touchstone Telephony Modem >", "ARRIS Euro-DOCSIS 2.0 / SIP 2.0 Touchstone Telephony Modem >", "Thomson Wireless PacketCable Gateway E-MTA >", "Netgear Wireless Cable Modem Gateway >", "ARRIS DOCSIS 2.0 / PacketCable 1.0 Touchstone Telephony Modem >", "COMTREND CORPORATION ADSL Termination Unit", "Skyworth DOCSIS 3.0 Wireless CableModem ", "ARRIS DOCSIS 2.0 / SIP 2.0 Touchstone Telephony Modem >", After contacting Bervis, Bleeping Computer obtained a list of vulnerable modem models. Researchers have set up a website to document the StringBleed flaw. Their results revealed the flaw affected the protocol itself, as they've found it affecting 58 different cable modem/router models, on the networks of different ISPs across the world. This led researchers to conduct Internet-wide scans for the purpose of identifying the exact cause of the issue. According to the research team, the company didn't acknowledge the flaw and blamed it on an ISP that misconfigured its equipment. Since Cisco had passed on the servicing of those types of devices to a company called Technicolor, the researchers brought up the issue with the latter.
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Since the test gear that was exhibiting this behavior was a Cisco DPC3928SL modem/router, they've reached out to the company, thinking they've discovered a lone bug in the Cisco firmware. StringBleed uncovered after casual security testsįernandez and Bervis say that during some tests where they were trying to brute-force an SNMP connection, they've seen several of their test gear respond to all authentication requests, regardless of the "community string" they've used. Once someone authenticates on the device, they have the ability to read or write data to the system with no restrictions. The device reads this string inside the SNMP request, called a "community string," and replies to the SNMP client request, either with data or by executing an action.
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While v3 comes with support for a username-password combo for the authentication system, v1 and v2 rely on a very simplistic authentication procedure that implies sending a string inside an SNMP request from an SNMP client (app) to a device's SNMP daemon. According to Ezequiel Fernandez and Bertin Bervis, two security researchers from Argentina and Costa Rica, respectively, there is a flaw in the authentication mechanism of SNMPv1 and SNMPv2. Since its creation, the protocol has gone through different versions, with the most recent being SNMPv3. StringBleed is an authentication bypass in SNMP v1 and v2 The vulnerability, tracked as CVE 2017-5135 but nicknamed StringBleed, affects the Simple Network Management Protocol (SNMP), a popular protocol invented in the 80s and used for managing network-connected devices. A severe security flaw in the implementation of the SNMP protocol allows an attacker to take over at least 58 cable modem models, according to a team of researchers.