spice-vdagent up to and including 0.17.0 does not properly escape save directory before passing to shell, allowing local attacker with acces

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• debian debian linux9.0
• spice-space spice-vdagentup to 0.17.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• Red Hat, Inc. spice-vdagent

  • up to and including 0.17.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2020-25653A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections.
  25Monitor
• CVE-2020-25651A flaw was found in the SPICE file transfer protocol.
  25Monitor
• CVE-2020-25652A flaw was found in the spice-vdagentd daemon, where it did not properly handle client connections that can be established via the UNIX doma
  22Monitor
• CVE-2020-25650A flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the virtual machine.
  22Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const host = req.body.host;2exec("ping -c 1 " + host, onResult);

1const host = req.body.host;2if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);3execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.