Vulnerability identifier: #VU48082

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15270

CWE-ID: CWE-672

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 sensitive information.

The vulnerability exists due to incorrect session management mechanism that does not properly implement session expiration. A remote attacker with invalidated session token can still receive broadcast events.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Parse Server: 4.0.0 - 4.3.0, 3.0.0 - 3.10.0, 2.0.5 - 2.8.4

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External links
http://github.com/parse-community/parse-server/commit/78b59fb26b1c36e3cdbd42ba9fec025003267f58
http://github.com/parse-community/parse-server/security/advisories/GHSA-2xm2-xj2q-qgpj

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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.