#VU28752 Information disclosure in Broker - CVE-2020-7648

Vulnerability identifier: #VU28752

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7648

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Broker
Client/Desktop applications / Other client software

Vendor: Snyk Ltd.

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

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

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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.