CVE-2002-1623
First published: Tue Dec 31 2002(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Check Point VPN-1 Firewall-1 | =4.0 | |
| Check Point VPN-1 Firewall-1 | =4.1 |
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Reference Links
- http://www.securityfocus.com/archive/1/290202
- http://www.nta-monitor.com/news/checkpoint.htm
- http://lists.grok.org.uk/pipermail/full-disclosure/2002-September/001223.html
- http://www.checkpoint.com/techsupport/alerts/ike.html
- http://www.securiteam.com/securitynews/5TP040U8AW.html
- http://www.kb.cert.org/vuls/id/886601
- http://www.securityfocus.com/bid/5607
- http://marc.info/?l=bugtraq&m=103124812629621&w=2
- http://marc.info/?l=bugtraq&m=103176164729351&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10034
Frequently Asked Questions
What is the severity of CVE-2002-1623?
CVE-2002-1623 is considered to have a medium severity rating due to its potential for information disclosure.
How does CVE-2002-1623 affect Check Point VPN-1 Firewall-1?
CVE-2002-1623 allows remote attackers to ascertain valid usernames by monitoring IKE protocol communications when using Aggressive Mode.
How do I fix CVE-2002-1623?
To fix CVE-2002-1623, it is recommended to configure the IKE protocol to use Main Mode instead of Aggressive Mode for better security.
What systems are affected by CVE-2002-1623?
CVE-2002-1623 affects Check Point VPN-1 Firewall-1 versions 4.0 and 4.1.
What are the consequences of CVE-2002-1623 exploitation?
Exploitation of CVE-2002-1623 can lead to unauthorized knowledge of valid usernames, increasing the risk of further attacks.
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