github - ghsa-mr95-9rr4-668f

GHSA-MR95-9RR4-668F

Vulnerability from github – Published: 2018-10-22 20:44 – Updated: 2022-09-14 19:20

Summary

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

Details

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.

Severity ?

9.1 (Critical)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.typesafe.akka:akka-actor_2.11"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.5.0"
            },
            {
              "fixed": "2.5.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.typesafe.akka:akka-actor_2.12"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.5.0"
            },
            {
              "fixed": "2.5.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-16115"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:47:05Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "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.",
  "id": "GHSA-mr95-9rr4-668f",
  "modified": "2022-09-14T19:20:04Z",
  "published": "2018-10-22T20:44:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16115"
    },
    {
      "type": "WEB",
      "url": "https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-mr95-9rr4-668f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cryptographically Weak Pseudo-Random Number Generator (PRNG) in akka-actor"
}

CVE-2018-16115 (GCVE-0-2018-16115)

Vulnerability from cvelistv5 – Published: 2018-08-29 22:00 – Updated: 2024-08-05 10:17

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://doc.akka.io/docs/akka/current/security/20…

x_refsource_MISC

Show details on NVD website

JSON

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        "references": [
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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        }
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      "problemTypes": [
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2018-08-29T22:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      },
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          ],
          "url": "https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html"
        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-16115",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MR95-9RR4-668F

CVE-2018-16115 (GCVE-0-2018-16115)

Tags

Sightings

Nomenclature