Information disclosure in Snyk Broker

1) Information disclosure

EUVDB-ID: #VU28752

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-2020-7648

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote user with access to Snyk's internal network can append the URL with a fragment identifier and a whitelisted path e.g. "#package.json" and gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Broker: 1.0.0 - 4.72.1

External links

http://snyk.io/vuln/SNYK-JS-SNYKBROKER-570607
http://updates.snyk.io/snyk-broker-security-fixes-152338
http://github.com/snyk/broker/commit/3e5654e7df9c9bb547da69d6db4b303c825d4dee

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.