Unsafe Pre-Authentication Deserialization In Workers
CVE-2021-40865

9.8CRITICAL

Key Information:

Vendor

Apache
Status
Apache Storm
Vendor
CVE Published:
25 October 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 46%

What is CVE-2021-40865?

An Unsafe Deserialization vulnerability exists in the worker services of the Apache Storm supervisor server allowing pre-auth Remote Code Execution (RCE). Apache Storm 2.2.x users should upgrade to version 2.2.1 or 2.3.0. Apache Storm 2.1.x users should upgrade to version 2.1.1. Apache Storm 1.x users should upgrade to version 1.2.4

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Deploy the Patch

Affected Version(s)

Apache Storm v1.0.0

Apache Storm Apache Storm

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-2021-40865
Created by hktalent

References

https://lists.apache.org/thread.html/r8d45e74299897b6734d...
x_refsource_MISC
https://seclists.org/oss-sec/2021/q4/45
x_refsource_MISC

EPSS Score

46% chance of being exploited in the next 30 days.

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

Credit

Apache Storm would like to thank @pwntester Alvaro Muñoz of the GitHub Security Lab team for reporting this issue.
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