CVE-2018-5389
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
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.
Overview
- CVE ID
- CVE-2018-5389
- Assigner
- cret@cert.org
- Vulnerability Status
- Modified
- Published Version
- 2018-09-06T21:29:00
- Last Modified Date
- 2019-10-09T23:41:16
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:ietf:internet_key_exchange:1.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-felsch.pdf | Third Party Advisory |
| https://www.kb.cert.org/vuls/id/857035 | Third Party Advisory US Government Resource |
| https://web-in-security.blogspot.com/2018/08/practical-dictionary-attack-on-ipsec-ike.html | Exploit Third Party Advisory |
| https://blogs.cisco.com/security/great-cipher-but-where-did-you-get-that-key | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-5389 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5389 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:03:59 | Added to TrackCVE | |||
| 2022-12-03 11:51:12 | cert@cert.org | cret@cert.org | CVE Assigner | updated |
| 2022-12-03 11:51:12 | 2018-09-06T21:29Z | 2018-09-06T21:29:00 | CVE Published Date | updated |
| 2022-12-03 11:51:12 | 2019-10-09T23:41:16 | CVE Modified Date | updated | |
| 2022-12-03 11:51:12 | Modified | Vulnerability Status | updated |