CVE-2019-11027 – ruby-openid

Package

Manager: gem
Name: ruby-openid
Vulnerable Version: >=0 <2.9.0

Severity

Level: Critical

CVSS v3.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

EPSS: 0.01832 pctl0.82213

Details

ruby-openid SSRF via claimed_id request Ruby OpenID (aka ruby-openid) through 2.8.0 is vulnerable to SSRF. Ruby-openid performs discovery first, and then verification. This allows an attacker to change the URL used for discovery and trick the server into connecting to the URL, which might be a private server not publicly accessible. Severity can range from medium to critical, depending on how a web application developer chose to employ the ruby-openid library. Developers who based their OpenID integration heavily on the "example app" provided by the project are at highest risk.

Metadata

Created: 2019-06-13T16:15:56Z
Modified: 2023-07-05T19:06:46Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/06/GHSA-fqfj-cmh6-hj49/GHSA-fqfj-cmh6-hj49.json
CWE IDs: ["CWE-918"]
Alternative ID: GHSA-fqfj-cmh6-hj49
Finding: F100
Auto approve: 1