A vulnerability in Ruby on Rails could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the targeted system.
The vulnerability is due to improper handling of certain requests by the affected software. An attacker could exploit this vulnerability by sending crafted requests. Processing of requests could allow the attacker to cause a DoS condition on a targeted system.
Rubyonrails.org has confirmed the vulnerability and released updated software.
Indicators of Compromise
Ruby on Rails versions prior to 3.2.17 are vulnerable.
The vulnerability is due to improper processing of certain headers by the text rendering component of Action View.
An unauthenticated, remote attacker could exploit this vulnerability by sending strings in the crafted headers. When software processes the headers, the software may convert strings into symbols, which will not be removed by the garbage collector. This could allow the attacker to cause the affected software to consume an excessive amount memory resources, resulting in a DoS condition.
To exploit this vulnerability, the attacker likely need access to trusted, internal networks to send crafted headers to the targeted system. This access requirement decreases the likelihood of a successful exploit.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
Rubyonrails.org has released a security announcement at the following link: CVE-2014-0082
Rubyonrails.org has released software updates at the following link: Ruby on Rails 3.2.17
Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
Red Hat has released a security advisory and updated packages to address the Ruby on Rails zction view text rendering remote denial of service vulnerability.
2014-March-18 12:39 GMT
Ruby on Rails contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition on a targeted system. Updates are available.
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