CVE-2018-5389

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Summary

CVECVE-2018-5389
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-09-06 21:29:00 UTC
Updated2019-10-09 23:41:00 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-521

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ietf Internet Key Exchange 1.0 All All All
Application Ietf Internet Key Exchange 1.0 All All All

References

ReferenceSourceLinkTags
Page not found - Cisco Blogs MISC blogs.cisco.com Third Party Advisory
VU#857035 - IKEv1 Main Mode vulnerable to brute force attacks CERT-VN www.kb.cert.org Third Party Advisory, US Government Resource
Practical Dictionary Attack on IPsec IKE MISC web-in-security.blogspot.com Exploit, Third Party Advisory
www.usenix.org/system/files/conference/usenixsecurity18/sec18-felsch.pdf MISC www.usenix.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Thanks to Martin Grothe, Joerg Schwenk, and Dennis Felsch of the Ruhr-University Bochum, and Adam Czubak and Marcin Szymanek of the University of Opole for reporting this vulnerability.

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