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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1yOTUtOXJyNC02Njhm

Cryptographically Weak Pseudo-Random Number Generator (PRNG) in akka-actor

Lightbend Akka 2.5.x before 2.5.16 allows message disclosure and modification because of an RNG error. A random number generator is used in Akka Remoting for TLS (both classic and Artery Remoting). Akka allows configuration of custom random number generators. For historical reasons, Akka included the AES128CounterSecureRNG and AES256CounterSecureRNG random number generators. The implementations had a bug that caused the generated numbers to be repeated after only a few bytes. The custom RNG implementations were not configured by default but examples in the documentation showed (and therefore implicitly recommended) using the custom ones. This can be used by an attacker to compromise the communication if these random number generators are enabled in configuration. It would be possible to eavesdrop, replay, or modify the messages sent with Akka Remoting/Cluster.

Permalink: https://github.com/advisories/GHSA-mr95-9rr4-668f
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1yOTUtOXJyNC02Njhm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 5 years ago
Updated: over 1 year ago


CVSS Score: 9.1
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Identifiers: GHSA-mr95-9rr4-668f, CVE-2018-16115
References: Blast Radius: 29.2

Affected Packages

maven:com.typesafe.akka:akka-actor_2.12
Dependent packages: 979
Dependent repositories: 1,033
Downloads:
Affected Version Ranges: >= 2.5.0, < 2.5.16
Fixed in: 2.5.16
All affected versions: 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.5.6, 2.5.7, 2.5.8, 2.5.9, 2.5.10, 2.5.11, 2.5.12, 2.5.13, 2.5.14, 2.5.15
All unaffected versions: 2.4.12, 2.4.13, 2.4.14, 2.4.16, 2.4.17, 2.4.18, 2.4.19, 2.4.20, 2.5.16, 2.5.17, 2.5.18, 2.5.19, 2.5.20, 2.5.21, 2.5.22, 2.5.23, 2.5.24, 2.5.25, 2.5.26, 2.5.27, 2.5.28, 2.5.29, 2.5.30, 2.5.31, 2.5.32, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 2.6.7, 2.6.8, 2.6.9, 2.6.10, 2.6.11, 2.6.12, 2.6.13, 2.6.14, 2.6.15, 2.6.16, 2.6.17, 2.6.18, 2.6.19, 2.6.20, 2.6.21, 2.7.0, 2.8.0, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5
maven:com.typesafe.akka:akka-actor_2.11
Dependent packages: 1,049
Dependent repositories: 1,615
Downloads:
Affected Version Ranges: >= 2.5.0, < 2.5.16
Fixed in: 2.5.16
All affected versions: 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.5.6, 2.5.7, 2.5.8, 2.5.9, 2.5.10, 2.5.11, 2.5.12, 2.5.13, 2.5.14, 2.5.15
All unaffected versions: 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, 2.3.8, 2.3.9, 2.3.10, 2.3.11, 2.3.12, 2.3.13, 2.3.14, 2.3.15, 2.3.16, 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7, 2.4.8, 2.4.9, 2.4.10, 2.4.11, 2.4.12, 2.4.13, 2.4.14, 2.4.15, 2.4.16, 2.4.17, 2.4.18, 2.4.19, 2.4.20, 2.5.16, 2.5.17, 2.5.18, 2.5.19, 2.5.20, 2.5.21, 2.5.22, 2.5.23, 2.5.24, 2.5.25, 2.5.26, 2.5.27, 2.5.28, 2.5.29, 2.5.30, 2.5.31, 2.5.32