CVE-2013-4073 Security feature bypass in n/a
Medium 6.8
Published
Updated
Check this codebase for CVE-2013-4073 and fix it if it is affected.
What it is: CVE-2013-4073 is a medium-severity vulnerability in Ruby-Lang Ruby, published on 18 Aug 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2013-4073 in the wild and no public exploit code.
Affected product: Ruby-Lang Ruby. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2013-4073/ (Markdown: https://insights.sbomify.com/CVE-2013-4073/index.md)
Man-in-the-middle attackers can spoof SSL servers by exploiting improper null character handling in certificate domain names.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4073?
CVE-2013-4073 is a medium-severity vulnerability in Ruby-Lang Ruby, published on 18 Aug 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Weakness: CWE-310
Which versions are affected by CVE-2013-4073?
It affects 1 product.
Linux distribution packages (40)
ruby Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-debuginfo Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-devel Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-docs Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-irb Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-libs Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-mode Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-rdoc Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-ri Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby-tcltk Red Hat:enterprise_linux:5::server | All versions | 0:1.8.5-31.el5_9 |
ruby Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-devel Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-docs Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-irb Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-libs Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-rdoc Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-ri Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-static Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby-tcltk Red Hat:enterprise_linux:6::client | All versions | 0:1.8.7.352-12.el6_4 |
ruby Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-docs Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-irb Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-libs Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-rdoc Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-ri Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-static Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby-tcltk Red Hat:enterprise_linux:6::computenode | All versions | 0:1.8.7.352-12.el6_4 |
ruby Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-devel Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-docs Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-irb Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-libs Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-rdoc Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-ri Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-static Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
ruby-tcltk Red Hat:enterprise_linux:6::server | All versions | 0:1.8.7.352-12.el6_4 |
Products include Ruby-Lang Ruby.
How do I fix CVE-2013-4073?
Upgrade to a fixed version.
Is CVE-2013-4073 being exploited?
There is no known exploitation of CVE-2013-4073 in the wild and no public exploit code.
Other vulnerabilities in Ruby-Lang Ruby
Sources
Also known as GHSA-3gpq-xx45-4rr9, MGASA-2013-0229, RHSA-2013:1090, RHSA-2013:1103, RHSA-2013:1137.