The cybersecurity industry was once again placed on high alert following the discovery of an insidious software supply chain compromise. The vulnerability, affecting the XZ Utils data compression library that ships with major Linux distributions, is logged under CVE-2024-3094 and boils down to a backdoor deliberately inserted by a once-trusted volunteer system maintainer, who managed to socially engineer his way to a position of trust before turning rogue. Allowing remote code execution (RCE) in some instances if successfully exploited represents a high-severity issue with the ability to cause serious damage in established software build processes.
Thankfully, another maintainer discovered this threat before the malicious code entered stable Linux releases, but, if this discovery were not made in time, the risk profile would make it one of the most devastating supply chain attacks on record, perhaps even eclipsing SolarWinds.
