GLSA 202003-09: OpenID library for Ruby: Server-Side Request Forgery

http://security.gentoo.org/

Severity:	high
Title:	OpenID library for Ruby: Server-Side Request Forgery
Date:	03/14/2020
Bugs:	#698464
ID:	202003-09

Synopsis

A vulnerability in OpenID library for Ruby at worst might allow an attacker to bypass authentication.

Background

A Ruby library for verifying and serving OpenID identities.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-ruby/ruby-openid	< 2.9.2	>= 2.9.2	All supported architectures

Description

It was discovered that OpenID library for Ruby performed discovery first, and then verification.

Impact

A remote attacker could possibly change the URL used for discovery and trick the server into connecting to the URL. This server in turn could be a private server not publicly accessible.

In addition, if the client that uses this library discloses connection errors, this in turn could disclose information from the private server to the attacker.

Workaround

There is no known workaround at this time.

Resolution

All ruby-openid users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-ruby/ruby-openid-2.9.2"

References

CVE-2019-11027

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202003-09.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.