hashcat fails to restrict command-line options when parsing restore files, allowing attackers to inject output-redirecting options like --outfile and --potfile-path. Attackers can craft restore files with malicious options to append attacker-controlled content to arbitrary files, enabling code execution when targeting shell startup files.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No 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 5
https://github.com/hashcat/hashcat
disclosure@vulncheck.com
https://github.com/hashcat/hashcat/blob/v7.1.2/src/restore.c#L365-L369
disclosure@vulncheck.com
https://github.com/hashcat/hashcat/commit/fcae69f2438ff8eae0dc8e206b78067a1e465…
disclosure@vulncheck.com
https://github.com/hashcat/hashcat/issues/4738
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/hashcat-through-arbitrary-file-write-via-r…
disclosure@vulncheck.com