CVEvulnerability

CVE-2018-0131

5.9 MEDIUM Published 2018-08-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-08-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
5.9 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-326

Description

A vulnerability in the implementation of RSA-encrypted nonces in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to obtain the encrypted nonces of an Internet Key Exchange Version 1 (IKEv1) session. The vulnerability exists because the affected software responds incorrectly to decryption failures. An attacker could exploit this vulnerability sending crafted ciphertexts to a device configured with IKEv1 that uses RSA-encrypted nonces. A successful exploit could allow the attacker to obtain the encrypted nonces. Cisco Bug IDs: CSCve77140.

Affected configurations

• cisco ios 15.5\(3\)s • cisco ios xe 15.5\(3\)s

Related

Weakness · CWE (1)

  • CWE-326 Inadequate Encryption Strength weakness

References