The JUMPSEC Lab is a place where the technical team get creative and showcase their latest security research, publications, interesting news and general thoughts! We love what we do and are passionate about security, with some great upcoming projects planned, bookmark our site and stick around to see what we are working on.
Several services are accessing named pipes with default or overly permissive security attributes; as these services run as user ‘NT AUTHORITY\SYSTEM’, the issue can be used to escalate privileges from a local standard or service account having SeImpersonatePrivilege (eg. user ‘NT AUTHORITY\NETWORK SERVICE’).
Various services running as user ‘NT AUTHORITY\SYSTEM’ rely on Windows’ DLL search order for loading DLL files that are not present on the filesystem. Under certain circumstances, a local attacker would be able to place a malicious DLL file to obtain code execution in the vulnerable service’s context to elevate privileges.
“Indicator of compromise (IOC) in computer forensics is an artifact observed on a network or in an operating system that with high confidence indicates a computer intrusion. Typical IOCs are virus signatures and IP addresses, MD5 hashes of malware files or URLs or domain names of botnet command and control servers. After IOCs have been identified in a process of incident response and computer forensics, they can be used for early detection of future attack attempts using intrusion detection...
Hello w0rld! JUMPSEC researchers have spent some time on the glibc DNS vulnerability indexed as CVE 2015-7547 (It hasn’t got a cool name like GHOST unfortunately…). It appears to be a highly critical vulnerability and covers a large number of systems. It allows remote code execution by a stack-based overflow in the client side DNS resolver. In this post we would like to present our analysis. Google POC overview Google POC Network Exploitation Timeline Google POC Exploit Code Analysis First...
Hello w0rld. On this post we would like to let you know our areas of research and the research projects that we are working on currently. For 2016 we are planning to develop tools that will be used in our tests. Our areas of interest can be highlighted as: AntiVirus Detection and Evasion techniques (sandbox detection, etc) Packers, anti-debugging, anti-disassembly and binary obfuscation Network packet capture analysis scripts looking for IoC FUD Malware (maybe Veil Improvisation) The initial...
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