Following a patch for a zero-day vulnerability in SolarWinds’ Serv-U Managed File Transfer, researchers share new details about the attacks, as over 8,000 systems remain publicly accessible and potentially vulnerable.

CVE-2021-35211: SolarWinds Serv-U Managed File Transfer Zero-Day Vulnerability Exploited in Targeted Attacks

Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.

Detections

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CVE-2021-35211

critical

Vulnerable Software