Plataforma
ruby
Componente
activerecord
Corregido en
2.3.17
CVE-2013-0277 is an Insecure Deserialization vulnerability present in Ruby on Rails versions prior to 2.3.17 and 3.x before 3.1.0. This flaw allows remote attackers to potentially cause a denial of service or, more critically, execute arbitrary code on the affected system. The vulnerability stems from the +serialize+ helper's handling of YAML deserialization. A patch was released in Rails 2.3.17 to address this issue.
The impact of CVE-2013-0277 is severe. An attacker can craft malicious serialized attributes that, when deserialized by the +serialize+ helper, lead to arbitrary code execution. This means an attacker could gain complete control over the server running the vulnerable Ruby on Rails application. The attack vector involves sending a specially crafted serialized payload to the application, which then processes it without proper validation. Successful exploitation could result in data breaches, system compromise, and potential lateral movement within the network. This vulnerability shares similarities with other deserialization flaws, where improper handling of serialized data can be leveraged for malicious purposes.
CVE-2013-0277 has been publicly disclosed and a proof-of-concept (PoC) is likely available, increasing the risk of exploitation. While no active campaigns have been definitively linked to this specific CVE, the general class of Insecure Deserialization vulnerabilities is frequently targeted. The vulnerability was published on 2017-10-24. It is not currently listed on CISA KEV.
Applications using older versions of Ruby on Rails (≤2.3.9.pre and 3.x < 3.1.0) are at risk. This includes legacy applications that haven't been updated recently and those relying on older gem dependencies. Shared hosting environments running vulnerable Ruby on Rails applications are particularly susceptible due to the potential for cross-tenant attacks.
• ruby / server:
find / -name 'Gemfile' -print | xargs grep 'activerecord'• ruby / server:
ruby -v # Check Ruby version• ruby / server:
bundle list activerecord # Check installed ActiveRecord versiondiscovery
disclosure
patch
Estado del Exploit
EPSS
6.74% (91% percentil)
The primary mitigation for CVE-2013-0277 is to upgrade to Ruby on Rails version 2.3.17 or later. If upgrading immediately is not feasible, consider implementing input validation on serialized data to prevent the processing of potentially malicious payloads. While a direct WAF rule is difficult to implement due to the complexity of YAML, strict input validation and sanitization can help. Review and restrict access to endpoints that handle serialized data. After upgrading, confirm the fix by attempting to deserialize a known malicious payload; it should be rejected.
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Análisis de vulnerabilidades y alertas críticas directamente en tu correo.
CVE-2013-0277 is a critical vulnerability in Ruby on Rails versions before 2.3.17 and 3.x before 3.1.0 that allows remote attackers to execute arbitrary code or cause a denial of service through crafted serialized attributes.
You are affected if you are using Ruby on Rails versions 2.3.9.pre or earlier, or any version of 3.x before 3.1.0. Check your version and upgrade immediately.
Upgrade to Ruby on Rails version 2.3.17 or later. If immediate upgrade is not possible, implement strict input validation on serialized data.
While no specific campaigns are confirmed, Insecure Deserialization vulnerabilities are frequently targeted, so proactive mitigation is essential.
Refer to the official Ruby on Rails security advisories and the NVD entry for CVE-2013-0277 for detailed information.
Sube tu archivo de dependencias y detecta esta y otras CVEs al instante.
Sube tu archivo Gemfile.lock y te decimos al instante si estás afectado.