5.0
MEDIUM CVSS 2.0
CVE-2005-2640
Juniper Netscreen VPN Information Leak
Description

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.

INFO

Published Date :

Aug. 23, 2005, 4 a.m.

Last Modified :

April 3, 2025, 1:03 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2005-2640 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Juniper netscreen_screenos
2 Juniper screenos
3 Juniper netscreen-5gt
4 Juniper netscreen-idp
5 Juniper netscreen-idp_10
6 Juniper netscreen-idp_100
7 Juniper netscreen-idp_1000
8 Juniper netscreen-idp_500
1 Netscreen ns-10
2 Netscreen ns-100
3 Netscreen ns-204
4 Netscreen ns-500
5 Netscreen ns-50ns25
6 Netscreen netscreen-sa_5000_series
7 Netscreen netscreen-sa_5020_series
8 Netscreen netscreen-sa_5050_series
1 Neoteris instant_virtual_extranet
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2005-2640 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2005-2640 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2005-2640 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2005-2640 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://marc.info/?l=bugtraq&m=112438068426034&w=2
    Added Reference http://secunia.com/advisories/16474/
    Added Reference http://securitytracker.com/id?1014728
    Added Reference http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm
    Added Reference http://www.securityfocus.com/bid/14595
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 18, 2016

    Action Type Old Value New Value
    Removed Reference http://marc.theaimsgroup.com/?l=bugtraq&m=112438068426034&w=2
    Added Reference http://marc.info/?l=bugtraq&m=112438068426034&w=2
  • Initial Analysis by [email protected]

    Aug. 23, 2005

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

5.88 }} -4.10%

score

0.89642

percentile