Directory traversal vulnerability in delivery-dev/al.php in Revive Adserver before 3.2.2 allows remote attackers to include and execute arbi

Affected versions

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

• revive-adserver revive adserverup to 3.2.1 inclusive

Other highest-scoring records for the same primary product.

• CVE-2021-22873Revive Adserver before 5.1.0 is vulnerable to open redirects via the `dest`, `oadest`, and/or `ct0` parameters of the lg.php and ck.php deli
  45Plan
• CVE-2020-8143An Open Redirect vulnerability was discovered in Revive Adserver version < 5.0.5 and reported by HackerOne user hoangn144.
  45Plan
• CVE-2016-9125Revive Adserver before 3.2.3 suffers from session fixation, by allowing arbitrary session identifiers to be forced and, at the same time, by
  40Plan
• CVE-2016-9124Revive Adserver before 3.2.3 suffers from Improper Restriction of Excessive Authentication Attempts.
  40Plan
• CVE-2017-5830Revive Adserver before 4.0.1 allows remote attackers to execute arbitrary code via serialized data in the cookies related to the delivery sc
  40Plan
• CVE-2016-9470Revive Adserver before 3.2.5 and 4.0.0 suffers from Reflected File Download.
  37Monitor

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.