Information disclosure in apollo-server-micro package for npm

1) Information disclosure

EUVDB-ID: #VU28782

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: N/A

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to the package does not properly enforce validation rules when creating subscription servers, which includes a "NoInstrospection" rule for the Websocket. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

apollo-server-micro: 1.0.2 - 2.14.1

CPE2.3

• cpe:2.3:a:GabrielL:apollo-server-micro:1.0.2:*:*:*:*:npm:*:*
• cpe:2.3:a:GabrielL:apollo-server-micro:1.0.4:*:*:*:*:npm:*:*
• cpe:2.3:a:GabrielL:apollo-server-micro:1.0.5:*:*:*:*:npm:*:*

External links

https://www.npmjs.com/advisories/1535
https://github.com/advisories/GHSA-w42g-7vfc-xf37

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.