Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS03YzRoLXc3NjUtNnB3Z84AAW2I

OISF suricata-update unsafely deserializes YAML data

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.

Permalink: https://github.com/advisories/GHSA-7c4h-w765-6pwg
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS03YzRoLXc3NjUtNnB3Z84AAW2I
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 2 years ago
Updated: 5 months ago

CVSS Score: 7.8
CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-7c4h-w765-6pwg, CVE-2018-1000167
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/advisories/GHSA-7c4h-w765-6pwg

Repository: https://github.com/OISF/suricata-update
Blast Radius: 4.7

Affected Packages