#VU57060 Information disclosure in Parse Server - CVE-2021-41109

Vulnerability identifier: #VU57060

Vulnerability 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-2021-41109

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Parse Server
Web applications / Modules and components for CMS

Vendor: Parse Community

Description

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

The vulnerability exists due to the inclusion of session tokens in LiveQuery payloads. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Parse Server: 4.10.0 - 4.10.3

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External links
https://github.com/parse-community/parse-server/releases/tag/4.10.4
https://github.com/parse-community/parse-server/commit/4ac4b7f71002ed4fbedbb901db1f6ed1e9ac5559
https://github.com/parse-community/parse-server/security/advisories/GHSA-7pr3-p5fm-8r9x

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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.