The design of the Internet Key Exchange (IKE) protocol, when using Aggressive Mode for shared secret authentication, does not encrypt initiator or responder identities during negotiation, which may allow remote attackers to determine valid usernames by (1) monitoring responses before the password is supplied or (2) sniffing, as originally reported for FireWall-1 SecuRemote.
Published 2002-12-31 05:00:00
Updated 2025-04-03 01:03:51
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2002-1623

Exploit prediction scoring system (EPSS) score for CVE-2002-1623

78.56%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2002-1623

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
NIST

References for CVE-2002-1623

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