Beganovich snappdf from 1.1.0 before 6.1.0 contains an OS command injection vulnerability on Windows that allows attackers to run commands by influencing the rendered URL. Attackers can supply cmd.exe metacharacters such as & in the setUrl() value, which executeOnWindows() passes unescaped to PHP exec(), executing commands as the PHP process.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
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/beganovich/snappdf/blob/v6.0.0/src/Snappdf.php#L280-L284
disclosure@vulncheck.com
https://github.com/beganovich/snappdf/commit/5197bd3bcc4df44e17246dbceea9ce51eb…
disclosure@vulncheck.com
https://github.com/beganovich/snappdf/pull/54
disclosure@vulncheck.com
https://github.com/beganovich/snappdf/releases/tag/v6.1.0
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/beganovich-snappdf-1.1.0-before-6.1.0-os-c…
disclosure@vulncheck.com