{"id":"CVE-2018-1000167","aliases":["EUVD-2018-0138","GHSA-7c4h-w765-6pwg","PYSEC-2018-75"],"status":"published","title":"OISF suricata-update unsafely deserializes YAML data","description":"OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The \"list-sources\"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.04037,"percentile":0.90681,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2018-04-18T19:00:00Z","modified":"2026-10-24T10:30:45Z","fixes":[{"ecosystem":"PyPI","package":"suricata-update","fixed_in":["1.0.0b1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"suricata-update","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.0a1"},{"fixed":"1.0.0b1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"suricata-update","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0b1"}]}],"versions":["1.0.0a1"]},{"source":"osv","ecosystem":"PyPI","package":"suricata-update","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0b1"}]}],"versions":["1.0.0a1"]}],"products":[{"vendor":"oisf","product":"suricata-update"}],"references":[{"url":"https://tech.feedyourhead.at/content/remote-code-execution-in-suricata-update","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://redmine.openinfosecfoundation.org/issues/2359","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000167","tags":["advisory"]},{"url":"https://github.com/OISF/suricata-update/pull/23","tags":["web"]},{"url":"https://github.com/OISF/suricata-update/commit/76270e73128ca1299b4e33e7e2a74ac3d963a97a","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/suricata-update/PYSEC-2018-75.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-7c4h-w765-6pwg","tags":["advisory"]},{"url":"https://github.com/OISF/suricata-update","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-1000167","description":"OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The \"list-sources\"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1.","status":"published","published":"2018-04-18T19:00:00Z","modified":"2024-08-05T12:33:49.402Z","updated_at":"2026-11-02T14:35:10.685174Z"}],"euvd":[{"id":"EUVD-2018-0138","description":"OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The \"list-sources\"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1.","status":"published","published":"2018-04-18T19:00:00Z","modified":"2024-08-05T12:33:49Z","updated_at":"2026-11-03T02:39:26.824954Z"}],"ghsa":[{"id":"GHSA-7c4h-w765-6pwg","title":"OISF suricata-update unsafely deserializes YAML data","description":"Suricata-Update uses the insecure `yaml.load()` function. Code will be executed if the yaml-file contains lines like:\n\n```yaml\nhello: !!python/object/apply:os.system ['ls -l \u003e /tmp/output']\n```\n\nThe vulnerable function can be triggered by \"suricata-update list-sources\". The locally stored index.yaml will be loaded in this function and the malicious code gets executed.","status":"published","published":"2022-05-14T03:22:02Z","modified":"2024-10-28T14:41:28Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:38:13.90937Z"}],"nvd":[{"id":"CVE-2018-1000167","description":"OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The \"list-sources\"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1.","status":"published","published":"2018-04-18T19:29:00.833Z","modified":"2026-06-17T01:32:34.457Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:04:25.506659Z"}],"osv":[{"id":"CVE-2018-1000167","description":"OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The \"list-sources\"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1.","status":"published","published":"2018-04-18T19:29:00.833Z","modified":"2026-10-24T10:30:45.804636171Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:07.192756Z"},{"id":"GHSA-7c4h-w765-6pwg","title":"OISF suricata-update unsafely deserializes YAML data","description":"Suricata-Update uses the insecure `yaml.load()` function. Code will be executed if the yaml-file contains lines like:\n\n```yaml\nhello: !!python/object/apply:os.system ['ls -l \u003e /tmp/output']\n```\n\nThe vulnerable function can be triggered by \"suricata-update list-sources\". The locally stored index.yaml will be loaded in this function and the malicious code gets executed.","status":"published","published":"2022-05-14T03:22:02Z","modified":"2024-10-28T14:53:28.409411Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:41.002603Z"},{"id":"PYSEC-2018-75","description":"OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The \"list-sources\"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1.","status":"published","published":"2018-04-18T19:29:00Z","modified":"2026-06-10T17:02:42.638662554Z","updated_at":"2026-11-02T15:52:52.192131Z"}]}}