An attacker could use specially crafted paths in a specific request to read or delete files from Relion 670 Series (versions 1p1r26, 1.2.3.1

Affected versions

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

• hitachienergy relion 670 firmwarebefore 1p1r26
• hitachienergy relion 670 firmware1.2 and later · before 1.2.3.17
• hitachienergy relion 670 firmware2.0 and later · before 2.0.0.10
• hitachienergy relion 670 firmware2.1 and later · before 2.1.0.1

Versions reported by the vendor

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

• n/a Relion 670 Series

  • 1p1r26, 1.2.3.17, 2.0.0.10, RES670 2.0.0.4, 2.1.0.1, and prioraffected

Other highest-scoring records for the same primary product.

• CVE-2021-35535Insufficient Security Control Vulnerability
  32Monitor
• CVE-2023-4518A vulnerability exists in the input validation of the GOOSE messages where out of range values received and processed by the IED caused a
  30Monitor
• CVE-2021-27196Specially Crafted IEC 61850 Protocol Sequence Vulnerability
  30Monitor

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

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

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

1const file = path.join(ROOT, req.query.name);2res.sendFile(file);

1const file = path.resolve(ROOT, req.query.name);2if (!file.startsWith(ROOT + path.sep)) {3  return res.sendStatus(400);4}5res.sendFile(file);

Attack context

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