#VU27869 Information disclosure in Active Resource - CVE-2020-8151

Vulnerability identifier: #VU27869

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-8151

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Active Resource
Universal components / Libraries / Libraries used by multiple products

Vendor: Ruby

Description

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

The vulnerability exists due to the way Active Resource encodes data before querying the back end server. A remote attacker can send specially crafted requests and gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Active Resource: 2.0.1 - 5.1.0

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External links
https://groups.google.com/forum/#!topic/rubyonrails-security/pktoF4VmiM8

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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.