Mozilla: DoH did not filter IPv4 mapped IP Addresses

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding...

PCI DSS v3.2 & Private IP Address Disclosure

Private IP addresses disclosure such as QID 86247 “Web Server Internal IP Address/Internal Network Name Disclosure Vulnerability” will be marked as a Fail for PCI as of February 1, 2018 in accordance with PCI DSS v3.2. QID 86247 is a PCI Fail according to PCI DSS v3.2 Requirement 1.3.7: 1.3.7 Do...

Microsoft Exchange Information Disclosure Vulnerability

An input sanitization issue exists with Microsoft Exchange that could potentially result in unintended Information Disclosure. An attacker who successfully exploited the vulnerability could identify the existence of RFC1918 addresses on the local network from a client on the Internet. An attacker...

New attack class exploits intranet weaknesses

A security researcher has developed an interesting new class of attacks that exploit the problems caused by organizations using non-routable IP space on their internal networks, including one attack that compromises VPN users through the use of a persistent JavaScript backdoor. The attacks rely o...

Threatpost News Wrap #3: Patch releases, RFC1918 attack

Threatpost editors Ryan Naraine and Dennis Fisher discuss this week’s massive patch releases by Microsoft, Adobe and Apple, the RFC1918 attack paper by Robert Hansen and who they’d pick in a rotisserie hacker draft. Download SHOW NOTES: New attack class exploits intranet weaknesses The time has...

CVE-2008-1397

Check Point VPN-1 Power/UTM, with NGX R60 through R65 and NG AI R55 software, allows remote authenticated users to cause a denial of service site-to-site VPN tunnel outage, and possibly intercept network traffic, by configuring the local RFC1918 IP address to be the same as one of this tunnel's...