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.

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.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

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.

Project Subscriptions

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2005-08-20T04:00:00.000Z

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.

Weaknesses