oisf/suricata-update · Security
OISF suricata-update unsafely deserializes YAML data
- GHSA ID
- GHSA-7c4h-w765-6pwg
- CVE ID
- CVE-2018-1000167
- Severity
- high
- Published
- Updated
- CVSS
- 7.8 · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS v3
- 7.8 · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS v4
- 8.6 · 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
Description
Suricata-Update uses the insecure yaml.load() function. Code will be executed if the yaml-file contains lines like:
hello: !!python/object/apply:os.system ['ls -l > /tmp/output']
The 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.
CWEs
- CWE-502 · Deserialization of Untrusted Data
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000167 ↗
- https://redmine.openinfosecfoundation.org/issues/2359 ↗
- https://tech.feedyourhead.at/content/remote-code-execution-in-suricata-update ↗
- https://github.com/OISF/suricata-update/pull/23 ↗
- https://github.com/OISF/suricata-update/commit/76270e73128ca1299b4e33e7e2a74ac3d963a97a ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/suricata-update/PYSEC-2018-75.yaml ↗
- https://github.com/advisories/GHSA-7c4h-w765-6pwg ↗