PT-2013-3403 · Ruby · Ruby-Openid

Ubercomp · Published 2013-12-12 · Updated 2017-10-24 · CVE-2013-1812

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions ruby-openid versions prior to 2.2.2

Description The issue allows remote OpenID providers to cause a denial of service, specifically CPU consumption, through two methods: (1) a large XRDS document or (2) an XML Entity Expansion (XEE) attack. XEE attack refers to a type of attack that exploits the use of external entities in XML documents to cause a denial of service.

Recommendations For versions prior to 2.2.2, update to version 2.2.2 or later to resolve the issue. As a temporary workaround, consider restricting the size of XRDS documents and disabling XML Entity Expansion to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2013-1812

GHSA-6C8P-QPHV-668V

Affected Products

Ruby-Openid

References · 15

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/ruby-openid/CVE-2013-1812.yml · Exploit
• 🔥 https://github.com/openid/ruby-openid/commit/a3693cef06049563f5b4e4824f4d3211288508ed · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2013-1812 · Security Note
• https://osv.dev/vulnerability/GHSA-6c8p-qphv-668v · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2013-November/120204.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-1812 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-1812 · Vendor Advisory
• http://openwall.com/lists/oss-security/2013/03/03/8 · Patch
• http://lists.fedoraproject.org/pipermail/package-announce/2013-November/120361.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2013-1812 · Vendor Advisory
• https://github.com/openid/ruby-openid · Note
• https://github.com/openid/ruby-openid/pull/43 · Note
• https://github.com/openid/ruby-openid/blob/master/CHANGELOG.md · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=918134 · Note
• https://github.com/advisories/GHSA-6c8p-qphv-668v · Note