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21 nails in Exim mail server: Vulnerabilities enable 'full remote unauthenticated code execution', millions of servers at risk


Nearly 4 million to be exact, say researchers
Tim Anderson
Wed 5 May 2021 // 17:20 UTC
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Researchers at security biz Qualys discovered 21 vulnerabilities in Exim, a popular mail server, which can be chained to obtain a full remote unauthenticated code execution and gain root privileges on the Exim Server.
Exim is a mail transfer agent (MTA), responsible for receiving and forwarding email messages. It runs primarily on Unix or Linux and is the default MTA on Debian - though Ubuntu and Red Hat Enterprise Linux use Postfix by default.
Some hosting companies use Exim to provide email services to their customers, and it was also popular in universities and other educational institutions (it was initially developed at the University of Cambridge in 1995) though many of these have transitioned to Office 365 or Google email, not least Cambridge itself. ....

United Kingdom , Bharat Jogi , University Of Cambridge , Microsoft Exchange , Exim Server , Red Hat Enterprise Linux , Secure Mailer , ஒன்றுபட்டது கிஂக்டம் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , மைக்ரோசாஃப்ட் பரிமாற்றம் , சிவப்பு தொப்பி நிறுவன லினக்ஸ் ,