En bref
- CVE-2018-1000167 est une vulnérabilité ÉLEVÉE (CVSS 7.8) touchant suricata-update, suricata-update (oisf).
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 4.1%, plus élevée que 90.6% des vulnérabilités.
- Correctif : mettre à jour vers 1.0.0b1 ou plus récent.
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.
NVD 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.
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