Multiple directory traversal vulnerabilities in (1) compose.php and (2) libs/Atmail/SendMsg.php in @Mail WebMail Client in AtMail Open-Sourc

Affected versions

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

• atmail atmail openup to 1.04 inclusive

Other highest-scoring records for the same primary product.

• CVE-2012-1916@Mail WebMail Client in AtMail Open-Source before 1.05 allows remote attackers to execute arbitrary code via an e-mail attachment with an ex
  31Monitor
• CVE-2012-1919CRLF injection vulnerability in mime.php in @Mail WebMail Client in AtMail Open-Source before 1.05 allows remote attackers to conduct direct
  26Monitor
• CVE-2012-1920@Mail WebMail Client in AtMail Open-Source 1.04 and earlier allows remote attackers to obtain configuration information via a direct request
  21Monitor
• CVE-2012-1917compose.php in @Mail WebMail Client in AtMail Open-Source before 1.05 does not properly handle ../ (dot dot slash) sequences in the unique p
  21Monitor
• CVE-2011-4540Multiple cross-site scripting (XSS) vulnerabilities in AtMail Open (aka AtMail Open-Source edition) 1.04 allow remote attackers to inject ar
  18Monitor

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.