CVE-2024-41996

Aug. 26, 2024, 4:35 p.m.

7.5
High

Description

Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.

Product(s) Impacted

Product Versions
UNKNOWN
  • []

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-295
Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.

References

https://dheatattack.gitlab.io/details/
https://dheatattack.gitlab.io/faq/
https://gist.github.com/c0r0n3r/abccc14d4d96c0442f3a77fa5ca255d1

Tags

cve@mitre.org
CWE-295
2024-08-26
CVE-2024-41996

CVSS Score

7.5 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Aug. 26, 2024, 6:15 a.m.
Last Modified: Aug. 26, 2024, 4:35 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@mitre.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.