Internet Key Exchange cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Internet Key Exchange and classified as critical. This impacts an unknown function. Performing a manipulation results in cryptographic issue. This vulnerability was named CVE-2018-5389. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Internet Key Exchange (the affected version unknown). It has been classified as critical. This affects an unknown part. The manipulation with an unknown input leads to a cryptographic issue vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 08/14/2018. The weakness was presented 09/06/2018 as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is uniquely identified as CVE-2018-5389 since 01/11/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 23 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371295 (F5 BIG-IP ASM,LTM,APM IPsec IKEv1 Brute-force Vulnerability (K42378447)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/11/2018 🔍
08/14/2018 +214 days 🔍
09/06/2018 +22 days 🔍
09/06/2018 +0 days 🔍
09/07/2018 +1 days 🔍
01/27/2025 +2334 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2018-5389 (🔍)
GCVE (CVE): GCVE-0-2018-5389
GCVE (VulDB): GCVE-100-123693
CERT: 🔍

Entryinfo

Created: 09/07/2018 07:55
Updated: 01/27/2025 05:55
Changes: 09/07/2018 07:55 (56), 03/21/2020 11:21 (1), 06/24/2024 21:55 (28), 01/27/2025 05:55 (2)
Complete: 🔍
Cache ID: 216::103

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