Summary

  • Multiple high-value mail servers worldwide have been hacked by a group likely supported by the Russian government, according to security firm ESET.
  • The group, known as Sednit, exploited XSS (cross-site scripting) vulnerabilities in four types of mail server software: Roundcube, MDaemon, Horde and Zimbra.
  • The attacks recently targeted defence contractors in Bulgaria and Romania that produce Soviet-era weapons used in Ukraine.
  • Governments in Africa, the European Union and South America have also been targeted.
  • XSS vulnerabilities allow hackers to execute malicious code in the browsers of people visiting a website or opening certain emails.
  • While this type of bug was commonplace a decade ago, it is less prevalent now, but still poses a significant threat.

By Dan Goodin

Original Article