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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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210

Critical Sudo Heap Overflow Vulnerability CVE-2021-3156 in Linux

Like any OS, Linux and Unix OSes require regular patching - but as security professionals, ethical hackers, and criminal hackers will tell you, regular Linux and Unix patching is often neglected. Learn about a new critical rated Linux\Unix vulnerability you can't afford to ignore. . Last week (26th January 2021) a new critical rated Linux\Unix vulnerability was made public under CVE-2021-3156 . Specifically, the vulnerability is within the ‘sudo’ program, which is an abbreviation of ‘superuser do‘, well that’s how I remember it. Sudo is a powerful and fundamental program found within all Linux and Unix distributions, allowing users to execute programs with the security privileges of another user. A typical use of sudo is where you need to run a program with privilege level (i.e. administrator) access rights. The sudo ‘heap overflow’ vulnerability was discovered by Qualys researchers, the exploit allows any unprivileged user to gain root level (i.e. administrative) privileges. Qualys has posted a blog and video which explains and demonstrates the exploitation technique, which as exploits go is fairly quick and easy to do. See CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit) | Qualys Security Blog The link for this article located at Security Boulevard is no longer available. . A serious vulnerability in the sudo command on Linux and Unix systems enables non-privileged users to obtain root-level permissions. Take immediate action!. Sudo Flaw, Heap Overflow, User Privilege Escalation. . Brittany Day

Calendar 2 Feb 08, 2021 User Avatar Brittany Day Security Vulnerabilities
77

macOS User Privileges: Sudo Versus Root Access Risks Explained

What are you really gaining by using sudo in the default Mac OS X configuration? First, you gain some comfort that nobody can login as root, either locally or remotely via SSH or FTP and tamper with your machine. Second, you get a log entry in /var/log/system.log every time sudo is used showing you who used it and what command was executed. These appear good enough reasons to endure the slight inconvenience of using sudo. However, the way sudo is configured out of the box, you only need to enter your own password for authentication. This means that if someone guesses your password or steals it (and has access to it locally or via SSH), they can take over your box just as if you had root enabled. . The link for this article located at LinuxBoxAdmin.com is no longer available. . Exploring the various dangers associated with employing sudo as opposed to utilizing root privileges in macOS system setups.. macOS Security,Sudo Usage,User Privileges,Access Control. . LinuxSecurity.com Team

Calendar 2 Mar 22, 2006 User Avatar LinuxSecurity.com Team Server Security
74

Protecting Directory Services Against E-Business Threats

The threats to a directory are many, and if appropriate safeguards are not maintained, a company may not even know when a directory has been compromised. The primary threats include theft, destruction and alteration of information (including user privileges). The potential . . . . The threats to a directory are many, and if appropriate safeguards are not maintained, a company may not even know when a directory has been compromised. The primary threats include theft, destruction and alteration of information (including user privileges). The potential result of a data loss or alteration ranges from the merely embarrassing, to the libelous (if competitive information is exposed), to the expensive (if the company is held liable for the exposure). Even less-sensitive breaches can have an enormous impact on consumer confidence in a company if the exposure is public (such as a cracker defacing a corporate Web site). . Risks to directory services can lead to significant consequences; effective measures are crucial for organizational safety.. Directory Services, Security Threats, Data Protection. . Anthony Pell

Calendar 2 Jul 19, 2000 User Avatar Anthony Pell Network Security
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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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