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CVE-2018-16518: Primx Zed!: Path traversal
CVE-2018-16518 is rated critical with a CVSS v3.0 base score of 9.8 and affects Primx Zed!. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
A directory traversal vulnerability with remote code execution in Prim'X Zed! FREE through 1.0 build 186 and Zed! Limited Edition through 6.1 build 2208 allows creation of arbitrary files on a user's workstation using crafted ZED! containers because the watermark loading function can place an executable file into a Startup folder.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-22: Improper Limitation of a Pathname to a Restricted Directory
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Affected products
- Primx Zed!: up to and including 6.1
- Primx Zed! Free: up to and including 1.0