Path traversal in pillarjs send plugin for Node.js

1) Path traversal

EUVDB-ID: #VU21760

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-6394

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to the affected software uses a partial comparison for verifying whether a directory is within the document root. A remote attacker can send a specially crafted HTTP request and access restricted directories on the system, as demonstrated using "public-restricted" under a "public" directory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

pillarjs send: 0.0.2 - 0.8.3

CPE2.3

• cpe:2.3:a:pillarjs:send:0.0.2:*:*:*:*:nodejs:*:*
• cpe:2.3:a:pillarjs:send:0.0.3:*:*:*:*:nodejs:*:*
• cpe:2.3:a:pillarjs:send:0.0.4:*:*:*:*:nodejs:*:*

External links

https://github.com/visionmedia/send/commit/9c6ca9b2c0b880afd3ff91ce0d211213c5fa5f9a
https://github.com/visionmedia/send/pull/59
https://nodesecurity.io/advisories/send-directory-traversal

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.