Security advisory

{
  "id": "ff3f8b5d7b672da344c22377a060f60cbf26a8d368bbd6d36be69e1bac9a93f6",
  "url": "https://osv.dev/vulnerability/CVE-2018-25117",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-25117",
    "summary": "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.",
    "evidence": "osv:CVE-2018-25117",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-25117",
      "aliases": [
        "CVE-2018-25117"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/outroll/vesta",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ee03eff"
                },
                {
                  "fixed": "a3f0fa1501d424477786e3e7150bb05c0b99518f"
                },
                {
                  "fixed": "ee03eff016e03cb76fac7ae3a0f9d1ef0f8ee35b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "ee03eff"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a3f0fa1501d424477786e3e7150bb05c0b99518f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ee03eff016e03cb76fac7ae3a0f9d1ef0f8ee35b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.9.8-20",
            "0.9.8-19",
            "0.9.8-18",
            "0.9.8-17",
            "0.9.8-16",
            "0.9.8-15",
            "0.9.8-13",
            "0.9.8-12",
            "0.9.8-11",
            "0.9.8-10"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-25117.json"
          }
        }
      ],
      "modified": "2026-10-20T10:48:10.147628912Z",
      "provider": "osv",
      "references": [
        "https://forum.vestacp.com/viewtopic.php?f=10&t=17641&p=73282",
        "https://forum.vestacp.com/viewtopic.php?f=10&t=17641&start=180#p73907",
        "https://vestacp.com/",
        "https://www.welivesecurity.com/2018/10/18/new-linux-chachaddos-malware-distributed-servers-vestacp-installed/",
        "https://www.vulncheck.com/advisories/vestacp-debian-installer-malicious-backdoor-supply-chain-compromise",
        "https://github.com/outroll/vesta/commit/a3f0fa1501d424477786e3e7150bb05c0b99518f#diff-df8da0c91e9086454c60cd468849630dR1256",
        "https://github.com/outroll/vesta/commit/ee03eff016e03cb76fac7ae3a0f9d1ef0f8ee35b#diff-df8da0c91e9086454c60cd468849630dL1270",
        "https://github.com/outroll/vesta"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-25117",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380110,
  "published_at": "2025-10-15T02:15:31.58+00:00"
}