Sun Microsystems Tuesday patched a critical bug that could let attackers snatch control of Solaris 10 systems by sending simple commands to the Telnet daemon.The fix comes just three days after exploit code for the zero-day vulnerability was posted to a security website. “Big round of applause for Sun owning up to the mistake and fixing it quickly,” said Dave Maynor, chief technology officer at Atlanta-based Errata Security, in a blog entry.A Sun security researcher owned up to the foul-up of leaving Telnet vulnerable.“Yes, this was an almighty [mess] up and should not have happened,” Alan Hargreaves, an engineer in Sun’s support group who wrote the initial patch, said in a blog of his own. “It did happen. Let’s move on.” Although Hargreaves’ patch fixed the bug, security organizations, including US-CERT and Errata Security, recommended that Solaris users also disable the Telnet daemon—or if they’ve turned it off, leave it off—using the command: # svcadm disable svc:/network/telnet:default.The patch can be downloaded from Sun’s support site. -Gregg Keizer, Computerworld Related content news analysis DHS unveils one common platform for reporting cyber incidents Ahead of CISA cyber incident reporting regulations, DHS issued a report on harmonizing 52 cyber incident reporting requirements, presenting a model common reporting platform that could encompass them all. By Cynthia Brumfield Sep 25, 2023 10 mins Regulation Regulation Regulation news Chinese state actors behind espionage attacks on Southeast Asian government The distinct groups of activities formed three different clusters, each attributed to a specific APT group. By Shweta Sharma Sep 25, 2023 4 mins Advanced Persistent Threats Cyberattacks feature How to pick the best endpoint detection and response solution EDR software has emerged as one of the preeminent tools in the CISO’s arsenal. Here’s what to look for and what to avoid when choosing EDR software. By Linda Rosencrance Sep 25, 2023 10 mins Intrusion Detection Software Security Monitoring Software Data and Information Security feature Top cybersecurity M&A deals for 2023 Fears of recession, rising interest rates, mass tech layoffs, and conservative spending trends are likely to make dealmakers cautious, but an ever-increasing need to defend against bigger and faster attacks will likely keep M&A activity steady in By CSO Staff Sep 22, 2023 24 mins Mergers and Acquisitions Data and Information Security IT Leadership Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe