Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authentication, allows remote attackers to enumerate valid usernames via an IKE Aggressive Mode packet, which generates a response if the username is valid but does not respond when the username is invalid.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.05881.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Juniper
  • Netscreen-5gt
  • Netscreen-idp
  • Netscreen-idp 10
  • Netscreen-idp 100
  • Netscreen-idp 1000
  • Netscreen-idp 500
  • Netscreen Screenos
Neoteris
  • Instant Virtual Extranet
Netscreen
  • Netscreen-sa 5000 Series
  • Netscreen-sa 5020 Series
  • Netscreen-sa 5050 Series
  • Ns-10
  • Ns-100
  • Ns-204
  • Ns-500
  • Ns-50ns25

Configuration 1 [-]

OR cpe:2.3:a:neoteris:instant_virtual_extranet:3.0:*:*:*:*:*:*:*
cpe:2.3:a:neoteris:instant_virtual_extranet:3.1:*:*:*:*:*:*:*
cpe:2.3:a:neoteris:instant_virtual_extranet:3.2:*:*:*:*:*:*:*
cpe:2.3:a:neoteris:instant_virtual_extranet:3.3:*:*:*:*:*:*:*
cpe:2.3:a:neoteris:instant_virtual_extranet:3.3.1:*:*:*:*:*:*:*

Configuration 2 [-]

OR cpe:2.3:o:juniper:netscreen_screenos:1.7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:1.64:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:1.66:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:1.66_r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:1.73_r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:1.73_r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.0.1_r8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.1_r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.1_r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.5r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.5r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.5r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.0:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r9:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r10:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r11:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.6.1r12:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.7.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.7.1r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.7.1r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.7.1r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.8_r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.10_r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:2.10_r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.0:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.0r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.0r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.0r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.0r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.1r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3_r1.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.0.3r8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r9:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r10:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r11:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.0r12:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:3.1.1_r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0:*:dial:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r9:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r10:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r11:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.0r12:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r5:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r6:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r7:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r8:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r9:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.1r10:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.3r1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.3r2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.3r3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:4.0.3r4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:5.0.0:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:5.1.0:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:5.1.0r3a:*:*:*:*:*:*:*
cpe:2.3:o:juniper:netscreen_screenos:5.2.0:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-10:*:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-100:3.0_.pe1.0:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-204:5.0.0_r6.0:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-204:0110.0_11_4.0_r10.0:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-204:0110.0_11_5.1.0_r3a:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-500:4110.0_11_4.0_r10.0:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-500:4110.0_11_5.1.0_r3a:*:*:*:*:*:*:*
cpe:2.3:o:netscreen:ns-50ns25:5.0.0_r6.0:*:*:*:*:*:*:*

Configuration 3 [-]

OR cpe:2.3:h:juniper:netscreen-5gt:5.0:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp:3.0:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp:3.0r1:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp:3.0r2:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp_10:3.0.1_r1:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp_100:3.0.1_r1:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp_1000:3.0.1_r1:*:*:*:*:*:*:*
cpe:2.3:h:juniper:netscreen-idp_500:3.0.1_r1:*:*:*:*:*:*:*
cpe:2.3:h:netscreen:netscreen-sa_5000_series:*:*:*:*:*:*:*:*
cpe:2.3:h:netscreen:netscreen-sa_5020_series:4.2_r2.2:*:*:*:*:*:*:*
cpe:2.3:h:netscreen:netscreen-sa_5050_series:4.2_r2.2:*:*:*:*:*:*:*

No data.

No data.

Advisories
Source ID Title
EUVD EUVD EUVD-2005-2641 Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authentication, allows remote attackers to enumerate valid usernames via an IKE Aggressive Mode packet, which generates a response if the username is valid but does not respond when the username is invalid.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://marc.info/?l=bugtraq&m=112438068426034&w=2 cve-icon cve-icon
http://secunia.com/advisories/16474/ cve-icon cve-icon
http://securitytracker.com/id?1014728 cve-icon cve-icon
http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm cve-icon cve-icon
http://www.securityfocus.com/bid/14595 cve-icon cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T22:45:01.317Z

Reserved: 2005-08-20T00:00:00

Link: CVE-2005-2640

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2005-08-23T04:00:00.000

Modified: 2025-04-03T01:03:51.193

Link: CVE-2005-2640

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.