How to find SolarWinds Serv-U systems on your network

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Updated

Latest SolarWinds vulnerability #

Microsoft recently notified SolarWinds that they had discovered a remote code execution vulnerability in Serv-U Managed File Transfer and Serv-U Secure FTP. The vulnerability being exploited is CVE-2021-35211 and only exists when SSH is enabled in Serv-U environments.

SolarWinds has issued a hotfix and recommends customers log into their customer portals to access these updates. You will need to install these updates immediately.

Finding SolarWinds Serv-U systems with Rumble #

With Rumble you can find Serv-U servers with SSH enabled in your inventory with this pre-built query. This query identifies SSH services that use the insecure Serv-U key or the Serv-U banner.

_asset.protocol:ssh AND protocol:"ssh" AND (banner:"SSH-2.0-Serv-U" OR ssh.hostKey.md5:"=e4:dd:11:2e:82:34:ab:62:59:1c:c8:62:1d:4b:48:99")

As always, any prebuilt queries we create are available from our Queries Library. Check out the library for other useful inventory queries.

Written by runZero Team

Due to the nature of their research and out of respect for their privacy, runZero team members prefer to remain anonymous. Their work is published under the runZero name.

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