Vulnerability identifier: #VU49393

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27831

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Quay
Server applications / Virtualization software

Vendor: Red Hat Inc.

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to Red Hat Quay does not properly protect the authorization token when authorizing email addresses for repository email notifications. A remote attacker can force the application to send repository notifications to arbitrary email addresses.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Quay: 3.3.0 - 3.3.1

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=1905758
http://access.redhat.com/security/cve/CVE-2020-27831

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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.