Spoofing attack in SwaggerUI

1) Insufficient verification of data authenticity

EUVDB-ID: #VU60488

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to SwaggerUI supports displaying remote OpenAPI definitions through the ?url parameter. A remote attacker can pass a malicious URL via the "url" parameter and display arbitrary OpenAPI definition.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Swagger UI: $GIT_TAG - 4.1.2

External links

http://github.com/swagger-api/swagger-ui/security/advisories/GHSA-qrmm-w75w-3wpx

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.