Remote Code Execution Vulnerability in Ruby on Rails by Ruby
CVE-2020-8163

8.8HIGH

Key Information:

Vendor

Rubyonrails

Status
Https://github.com/rails/rails
Vendor
CVE Published:
2 July 2020

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 90%

What is CVE-2020-8163?

The vulnerability allows an attacker to inject malicious code via the locals argument in a render call, leading to potential remote code execution. This affects all versions of Ruby on Rails prior to 5.0.1, emphasizing the importance of upgrading to mitigate risks associated with this type of security flaw.

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Deploy the Patch

Affected Version(s)

https://github.com/rails/rails Fixed in 4.2.11.2

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-2020-8163
Created by lucasallan

CVE-2020-8163
Created by h4ms1k

CVE-2020-8163
Created by TK-Elliot

References

https://hackerone.com/reports/304805
x_refsource_MISC
https://groups.google.com/g/rubyonrails-security/c/hWuKcH...
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020/07/msg0...
mailing-listx_refsource_MLIST

EPSS Score

90% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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