Directory traversal vulnerability in aria2 before 1.9.3 allows remote attackers to create arbitrary files via directory traversal sequences

Affected versions

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

• tatsuhiro tsujikawa aria2up to 1.9.2 inclusive
• tatsuhiro tsujikawa aria20.1.0
• tatsuhiro tsujikawa aria20.10.0
• tatsuhiro tsujikawa aria20.10.0+1
• tatsuhiro tsujikawa aria20.10.1
• tatsuhiro tsujikawa aria20.10.2
• tatsuhiro tsujikawa aria20.10.2+1
• tatsuhiro tsujikawa aria20.11.0
• tatsuhiro tsujikawa aria20.11.1
• tatsuhiro tsujikawa aria20.11.1+1
• tatsuhiro tsujikawa aria20.11.2
• tatsuhiro tsujikawa aria20.11.3
• tatsuhiro tsujikawa aria20.11.4
• tatsuhiro tsujikawa aria20.11.5
• tatsuhiro tsujikawa aria20.12.0
• tatsuhiro tsujikawa aria20.12.1
• tatsuhiro tsujikawa aria20.13.0
• tatsuhiro tsujikawa aria20.13.0+1
• tatsuhiro tsujikawa aria20.13.1
• tatsuhiro tsujikawa aria20.13.1+1

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-2009-3575Buffer overflow in DHTRoutingTableDeserializer.cc in aria2 0.15.3, 1.2.0, and other versions allows remote attackers to cause a denial of se
  42Plan
• CVE-2009-3617Format string vulnerability in the AbstractCommand::onAbort function in src/AbstractCommand.cc in aria2 before 1.6.2, when logging is enable
  31Monitor

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.