PT-2005-3530 · Juniper Networks · Juniper Netscreen Vpn

Roy Hills · Published 2005-08-20 · Updated 2016-10-18 · CVE-2005-2640

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Juniper Netscreen VPN version 5.2.0 and earlier

Description A behavioral discrepancy information leak occurs when using IKE with pre-shared key authentication, allowing remote attackers to enumerate valid usernames via an IKE Aggressive Mode packet. This packet generates a response if the username is valid but does not respond when the username is invalid.

Recommendations For Juniper Netscreen VPN version 5.2.0 and earlier, consider disabling IKE Aggressive Mode as a temporary workaround until a patch is available. Restrict access to the VPN to minimize the risk of exploitation. Avoid using pre-shared key authentication in IKE until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2005-2640

Affected Products

Juniper Netscreen Vpn

References · 7

• 🔥 https://exploit-db.com/exploits/26168 · Exploit
• 🔥 http://securityfocus.com/bid/14595 · Exploit
• 🔥 http://nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2005-2640 · Security Note
• http://secunia.com/advisories/16474 · Vendor Advisory
• http://marc.info/?l=bugtraq&m=112438068426034&w=2 · Note
• http://securitytracker.com/id?1014728 · Note