Nuclei versions before 3.11.1 cache template signature verification based only on file modification time without content checksums. Attackers can replace verified templates with unsigned malicious content and restore the original modification time to bypass signature checks and execute arbitrary operating system commands.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/projectdiscovery/nuclei
disclosure@vulncheck.com
https://github.com/projectdiscovery/nuclei/blob/v3.11.0/pkg/catalog/index/metad…
disclosure@vulncheck.com
https://github.com/projectdiscovery/nuclei/blob/v3.11.0/pkg/templates/compile.g…
disclosure@vulncheck.com
https://github.com/projectdiscovery/nuclei/commit/9de96e4dda5a03da963b9ae6582f0…
disclosure@vulncheck.com
https://github.com/projectdiscovery/nuclei/issues/7663
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/nuclei-from-3.7.0-before-3.11.1-template-s…
disclosure@vulncheck.com