جزئیات آسیب‌پذیری

VestaCP commit a3f0fa1 (2018-05-31) up to commit ee03eff (2018-06-13) contain embedded malicious code that resulted in a supply-chain compromise. New installations created from the compromised installer since at least May 2018 were subject to installation of Linux/ChachaDDoS, a multi-stage DDoS bot that uses Lua for second- and third-stage components. The compromise leaked administrative credentials (base64-encoded admin password and server domain) to an external URL during installation and/or resulted in the installer dropping and executing a DDoS malware payload under local system privileges. Compromised servers were subsequently observed participating in large-scale DDoS activity. Vesta acknowledged exploitation in the wild in October 2018.

• https://www.welivesecurity.com/2018/10/18/new-linux-chachaddos-malware-distributed-servers-vestacp-installed/ technical-description
• https://github.com/outroll/vesta/commit/ee03eff016e03cb76fac7ae3a0f9d1ef0f8ee35b#diff-df8da0c91e9086454c60cd468849630dL1270 patch
• https://github.com/outroll/vesta/commit/a3f0fa1501d424477786e3e7150bb05c0b99518f#diff-df8da0c91e9086454c60cd468849630dR1256 patch
• https://forum.vestacp.com/viewtopic.php?f=10&t=17641&p=73282 issue-tracking
• https://forum.vestacp.com/viewtopic.php?f=10&t=17641&start=180#p73907 vendor-advisorypatch
• https://vestacp.com/ product
• https://github.com/outroll/vesta product
• https://www.vulncheck.com/advisories/vestacp-debian-installer-malicious-backdoor-supply-chain-compromise third-party-advisory