CVE-2019-11027

Ruby OpenID (aka ruby-openid) through 2.8.0 has a remotely exploitable flaw

published June 10, 2019

CVSS
โ€”
EPSS
3%
Percentile
87.1
In the wild
Unconfirmed
What it is

โš ๏ธ A single misconfigured integration can expose your Rails app to this remotely exploitable flaw in ruby-openid! ๐Ÿ”ฅ Think of it like a restaurant that uses a popular recipe card as a secret ingredient โ€” if that card has a mistake, the whole dish goes wrong! Similarly, if developers stick too closely to the 'example app', they might inadvertently open the door for attackers. An attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive user data by leveraging the OpenID integration โ€” a real recipe for disaster! If your integration relies on that flawed setup, everything could be at stake, putting both user trust and application integrity on the line.

Put simply

Think of it like a restaurant that uses a popular recipe card as a secret ingredient โ€” if that card has a mistake, the whole dish goes wrong! Similarly, if developers stick too closely to the 'example app', they might inadvertently open the door for attackers. This vulnerability in ruby-openid allows remote attackers to impersonate users by exploiting improper handling of OpenID credentials when the library is misconfigured, especially in applications closely following the provided example.

What to do

An attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive user data by leveraging the OpenID integration โ€” a real recipe for disaster! If your integration relies on that flawed setup, everything could be at stake, putting both user trust and application integrity on the line. Developers should immediately review their OpenID integration, ensuring they customize configurations and do not rely solely on the example app. Upgrade to the latest version of ruby-openid and consider implementing additional security checks to harden your setup. You've got this! With a few adjustments, you'll have your Rails app fortified in no time! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02968 ยท 87.1th percentile
Published
2019-06-10T18:57Z
EPSS history
Timeline
  • 10 JUN 18:57Z
    Ruby OpenID (aka ruby-openid) through 2.8.0 has a remotely exploitable flaw
    cvelistv5