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CVE-2015-7576: Timing Attack in Ruby on Rails Actionpack
Plataforma
ruby
Componente
actionpack
Corrigido em
3.2.22.1
CVE-2015-7576 describes a timing attack vulnerability within the HTTP Basic Authentication implementation of Ruby on Rails' Action Controller. This flaw allows a remote attacker to potentially bypass authentication by analyzing the time taken to verify credentials. The vulnerability affects versions of Actionpack up to and including 3.2.9.rc3, with a fix available in version 3.2.22.1.
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Impacto e Cenários de Ataquetraduzindo…
The primary impact of CVE-2015-7576 is the potential for unauthorized access to protected resources within a Ruby on Rails application. An attacker can exploit this timing vulnerability to deduce valid credentials by repeatedly attempting authentication and measuring the response times. While the CVSS score is LOW, successful exploitation could lead to complete compromise of the application and its data, particularly if sensitive information is accessible via Basic Authentication. This vulnerability shares similarities with other timing attacks targeting authentication mechanisms, highlighting the importance of constant-time algorithms in security-critical code.
Contexto de Exploraçãotraduzindo…
CVE-2015-7576 was published in 2017. There is no indication of active exploitation campaigns targeting this vulnerability. No public Proof-of-Concept (POC) exploits have been widely reported. The EPSS score is likely low, reflecting the difficulty and specialized knowledge required to successfully exploit this timing attack.
Inteligência de Ameaças
Status do Exploit
EPSS
1.57% (percentil 81%)
Vetor CVSS
O que significam essas métricas?
- Attack Vector
- Rede — explorável remotamente pela internet. Sem acesso físico ou local necessário.
- Attack Complexity
- Alta — exige condição de corrida, configuração não padrão ou circunstâncias específicas.
- Privileges Required
- Nenhum — sem autenticação necessária para explorar.
- User Interaction
- Nenhuma — ataque automático e silencioso. A vítima não faz nada.
- Scope
- Inalterado — impacto limitado ao componente vulnerável.
- Confidentiality
- Baixo — acesso parcial ou indireto a alguns dados.
- Integrity
- Nenhum — sem impacto na integridade.
- Availability
- Nenhum — sem impacto na disponibilidade.
Software Afetado
Linha do tempo
- Publicada
- Modificada
- EPSS atualizado
Mitigação e Soluções Alternativastraduzindo…
The recommended mitigation for CVE-2015-7576 is to upgrade to Ruby on Rails version 3.2.22.1 or later. If upgrading is not immediately feasible, consider disabling HTTP Basic Authentication entirely and implementing a more robust authentication mechanism. As a temporary workaround, implement rate limiting on authentication attempts to make timing attacks more difficult. Review your application's authentication logic to ensure it adheres to constant-time principles. After upgrading, confirm the fix by attempting a timing attack against the authentication endpoint and verifying that response times remain consistent regardless of the provided credentials.
Como corrigirtraduzindo…
Nenhum patch oficial disponível. Procure alternativas ou monitore atualizações.
Perguntas frequentestraduzindo…
What is CVE-2015-7576 — Timing Attack in Ruby on Rails Actionpack?
CVE-2015-7576 is a vulnerability in Ruby on Rails Actionpack that allows attackers to bypass HTTP Basic Authentication by measuring timing differences during credential verification.
Am I affected by CVE-2015-7576 in Ruby on Rails Actionpack?
You are affected if your Ruby on Rails application uses Actionpack and is running a version prior to 3.2.22.1. Check your version using bundle -v.
How do I fix CVE-2015-7576 in Ruby on Rails Actionpack?
Upgrade your Ruby on Rails application to version 3.2.22.1 or later. Consider disabling Basic Authentication if upgrading is not immediately possible.
Is CVE-2015-7576 being actively exploited?
There is no public evidence of active exploitation campaigns targeting CVE-2015-7576, but the potential for exploitation remains.
Where can I find the official Ruby on Rails advisory for CVE-2015-7576?
Refer to the official Ruby on Rails security advisories: https://github.com/rails/rails/security/advisories
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Detecte esta CVE no seu projeto
Envie seu arquivo Gemfile.lock e descubra na hora se você está afetado.
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