JSOF is a boutique cyber consultancy and project firm. We are cyber security experts

Joined January 2020
We are releasing Dnspooq - 7 vulnerabilities in dnsmasq, and open source DNS forwarder used in major Linux distributions and by dozens of vendors jsof-tech.com/disclosures/dn…
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JSOF Cyber Security retweeted
I found some design and implementation flaws in Wi-Fi again. All Wi-Fi devices are affected. It was a long ~9 months embargo, over this time a lot of info has been collected and that info now available at fragattacks.com
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JSOF Cyber Security retweeted
Forescout & @JSOF18 research disclose NAME:WRECK - 9 new DNS #vulnerabilities affecting popular TCP/IP stacks used in millions of #IoT #OT & IT devices. ow.ly/62ne50EnkpK #NAMEWRECK
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JSOF Cyber Security retweeted
As part of Project Memoria we're releasing a report together with @JSOF18 on several DNS vulnerabilities in popular TCP/IP stacks (FreeBSD, NetX, Nucleus NET, ...), including a breakdown of underlying anti-patterns (hint: check your message compression). forescout.com/research-labs/…
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Announcing the latest research by @JSOF18 and @Forescout Great coverage by @campuscodi as always. #NameWreck #IoT #Cyber
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JSOF Cyber Security retweeted
Forescout and JSOF Disclose New DNS Vulnerabilities, Impacting Millions of Enterprise and Consumer Devices - Forescout forescout.com/company/blog/f…
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JSOF Cyber Security retweeted
Were there just 3 RCEs in ipv4 ipv6 and DNS on windows?
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JSOF Cyber Security retweeted
The Qualys Research Team has discovered a critical vulnerability in #Sudo, which allows an unprivileged user to gain root privileges in its default configuration. #linux #unix #vulnerability blog.qualys.com/vulnerabilit…
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Supply chain issues affect Open Source Software too. Dnsmasq is extremely popular (and for a good reason!) and so the vulnerabilities affect dozens of vendors and many major Linux distributions.
Researchers have found set of flaws allowing for DNS cache-poisoning attacks (also known as DNS spoofing) DNSpooq is a series of vulnerabilities found in the ubiquitous open-source software dnsmasq, demonstrating that DNS is still insecure ➡️threatpost.com/dnspooq-flaws… #DNSpooq
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Some recommended workarounds for #dnspooq if you can't upgrade your device. Configuring your devices to directly query a trusted DNS server would also be helpful.
JSOF advises updating the Dnsmasq software to the latest version (2.83 or later) to fully mitigate DNSpooq attacks. A list of (partial) workarounds is also available:
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Thank you @vijaycert and @ICSCERT @certcc for orchestrating the disclosure of @dnspooq!
Shout out to multiple vendors @cisco @google @The_Pi_Hole @RedHat to resolve @dnsmasq vulnerabilities. Thanks to @GitHubSecurity for GHSA platform and to @JSOF18 for responsible vulnerability disclosure!
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Great article by @campuscodi covering our latest #Dnsooq findings. Another timely reminder that it's time for mitigations like DNSSEC to be more widely adopted.
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Sounds like you will soon be able to know if your device is vulnerable to #Dnspooq. Good stuff @VDOOSecurity
DNSpooq, 7 #vulnerabilities in #dnsmasq just published by @JSOF-under certain conditions,attacker can achieve #DNScachepoisoning & #RCE. Given a device image, Vdoo's automated platform will soon be able to detect whether these vulnerabilities are actually #exploitable- stay tuned
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JSOF Cyber Security retweeted
Today we release #DNSpooq - 7 vulnerabilities in dnsmasq, a popular open source DNS forwarder. 3 vulnerabilities enable cache poisoning and the other 4 are pre-DNSSEC-validation buffer overflows. Patch! jsof-tech.com/disclosures/dn…
We're releasing some new vulnerability findings tomorrow. Spoiler alert: It was DNS!
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JSOF Cyber Security retweeted
Vulnerability Response Information - Treck | Embedded TCP/IP | Internet Protocols treck.com/vulnerability-resp…
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