CVE-2018-16115

Lightbend Akka 2.5.x before 2.5.16 allows message disclosure and modification because of an RNG error

published August 29, 2018

CVSS
—
EPSS
1%
Percentile
67.4
In the wild
Unconfirmed
What it is

⚠️ A sneaky RNG error in Lightbend Akka 2.5.x could let attackers eavesdrop or even mess with messages! 🔄 Think of it like a poorly secured postal system that keeps sending the same delivery number for different packages—an attacker could easily track or alter the contents without anyone noticing. With this vulnerability, an attacker could intercept and modify communications within Akka Remoting or Cluster. This means sensitive information could be disclosed or tampered with, potentially leading to catastrophic data breaches or integrity issues. Imagine the chaos if important messages were swapped or deleted!

Put simply

Think of it like a poorly secured postal system that keeps sending the same delivery number for different packages—an attacker could easily track or alter the contents without anyone noticing. This vulnerability stems from a bug in certain custom random number generators (AES128CounterSecureRNG and AES256CounterSecureRNG) used by Akka. These RNGs repeat generated numbers after only a few bytes, compromising the security of TLS communications in the Akka framework.

What to do

With this vulnerability, an attacker could intercept and modify communications within Akka Remoting or Cluster. This means sensitive information could be disclosed or tampered with, potentially leading to catastrophic data breaches or integrity issues. Imagine the chaos if important messages were swapped or deleted! To protect against this issue, upgrade to Akka version 2.5.16 or later. Additionally, ensure that the default RNG implementations are used and review your configuration to avoid inadvertent use of the buggy custom RNGs. Being vigilant about the settings is key! You've got this! Secure your Akka setup and keep those messages safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01186 · 67.4th percentile
Published
2018-08-29T22:00Z
EPSS history
Timeline
  • 29 AUG 22:00Z
    Lightbend Akka 2.5.x before 2.5.16 allows message disclosure and modification because of an RNG error
    cvelistv5