CVE-2018-5389

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Internet Key Exchange v1 main mode is vulnerable to offline dictionary or brute force attacks. Reusing a key pair across different versions and modes of IKE could lead to cross-protocol authentication bypasses. It is well known, that the aggressive mode of IKEv1 PSK is vulnerable to offline dictionary or brute force attacks. For the main mode, however, only an online attack against PSK authentication was thought to be feasible. This vulnerability could allow an attacker to recover a weak Pre-Shared Key or enable the impersonation of a victim host or network.

El modo principal de Internet Key Exchange v1 es vulnerable a ataques de diccionario offline o de fuerza bruta. La reutilización de un par de claves en diferentes versiones y modos de IKE podría conducir a omisiones de autenticación en protocolos cruzados. Se sabe que el modo agresivo de IKEv1 PSK es vulnerable a ataques de diccionario offline o de fuerza bruta. Sin embargo, para el modo principal, se pensaba que solo sería posible un ataque online contra la autenticación PSK. Esta vulnerabilidad podría permitir que un atacante recupere una PSK (Pre-Shared Key) débil o que suplante a un host o red víctimas.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-01-12 CVE Reserved
2018-09-06 CVE Published
2024-06-25 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-521: Weak Password Requirements

CAPEC

References (5)

URL	Tag	Source
https://blogs.cisco.com/security/great-cipher-but-where-did-you-get-that-key	Third Party Advisory
https://my.f5.com/manage/s/article/K42378447
https://www.kb.cert.org/vuls/id/857035	Third Party Advisory
https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-felsch.pdf	Third Party Advisory

URL	Date	SRC
https://web-in-security.blogspot.com/2018/08/practical-dictionary-attack-on-ipsec-ike.html	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ietf Search vendor "Ietf"		Internet Key Exchange Search vendor "Ietf" for product "Internet Key Exchange"				1.0 Search vendor "Ietf" for product "Internet Key Exchange" and version "1.0"		-		Affected