Path traversal in Snyk Broker

1) Path traversal

EUVDB-ID: #VU28753

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7649

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 input validation error when processing directory traversal sequences. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Broker: 1.0.0 - 4.72.2

External links

http://snyk.io/vuln/SNYK-JS-SNYKBROKER-570608
http://github.com/snyk/broker/commit/90e0bac07a800b7c4c6646097c9c89d6b878b429
http://updates.snyk.io/snyk-broker-security-fixes-152338

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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