Improper input validation in Rubyonrails Rails
CVE-2013-0156
active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.994 (99.9th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.994 · newest: 0.994 · change: 0.000
Affected products
- Rubyonrails Rails
- Rubyonrails Ruby On Rails
- Debian Linux — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/group/rubyonrails-security/msg/c1432d0f8c70e89d (mailing-list, Third Party Advisory)
- www.insinuator.net/2013/01/rails-yaml/ (Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2013-0155.html (vendor-advisory, Third Party Advisory)
- www.kb.cert.org/vuls/id/628463 (US Government Resource, Third Party Advisory, third-party-advisory)
- community.rapid7.com/community/metasploit/blog/2013/01/09/serialization-mischie… (Third Party Advisory)
- www.fujitsu.com/global/support/software/security/products-f/sw-sv-rcve-ror20130… (Third Party Advisory)
- www.kb.cert.org/vuls/id/380039 (US Government Resource, Third Party Advisory, third-party-advisory)
- lists.apple.com/archives/security-announce/2013/Mar/msg00002.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.debian.org/security/2013/dsa-2604 (vendor-advisory, Third Party Advisory)
- ics-cert.us-cert.gov/advisories/ICSA-13-036-01A (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2013-0156?
- CVE-2013-0156 is a vulnerability in Rubyonrails Rails, classified under Improper Input Validation. Published 2013-01-13.
- Is CVE-2013-0156 known to be exploited?
- 43 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.