Instance Evaluation Mismanagement in Distributed Ruby 1.8 by DRuby
CVE-2011-5331

9.8CRITICAL

Key Information:

Vendor

Distributed Ruby Project

Status
Distributed Ruby
Vendor
CVE Published:
18 November 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2011-5331?

The Distributed Ruby (DRuby) implementation in version 1.8 has a security flaw that occurs due to mishandling of instance_eval, allowing potential attackers to exploit this vulnerability. This oversight could lead to unauthorized code execution, making it imperative for users to be aware of the implications and seek remediation.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2011-5331
Created by tomquinn8

References

https://www.exploit-db.com/exploits/17058
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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