CVE-2005-2640
UnknownEPSS 7.09%
Last modified
CVE-2005-2640 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.09% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Neoteris | Instant Virtual Extranet | 3.0 |
| Neoteris | Instant Virtual Extranet | 3.1 |
| Neoteris | Instant Virtual Extranet | 3.2 |
| Neoteris | Instant Virtual Extranet | 3.3 |
| Neoteris | Instant Virtual Extranet | 3.3.1 |
| Juniper | Netscreen Screenos | 1.7 |
| Juniper | Netscreen Screenos | 1.64 |
| Juniper | Netscreen Screenos | 1.66 |
| Juniper | Netscreen Screenos | 1.66_r2 |
| Juniper | Netscreen Screenos | 1.73_r1 |
| Juniper | Netscreen Screenos | 1.73_r2 |
| Juniper | Netscreen Screenos | 2.0.1_r8 |
| Juniper | Netscreen Screenos | 2.1 |
| Juniper | Netscreen Screenos | 2.1_r6 |
| Juniper | Netscreen Screenos | 2.1_r7 |
| Juniper | Netscreen Screenos | 2.5 |
| Juniper | Netscreen Screenos | 2.5r1 |
| Juniper | Netscreen Screenos | 2.5r2 |
| Juniper | Netscreen Screenos | 2.5r6 |
| Juniper | Netscreen Screenos | 2.6.0 |
| Juniper | Netscreen Screenos | 2.6.1 |
| Juniper | Netscreen Screenos | 2.6.1r1 |
| Juniper | Netscreen Screenos | 2.6.1r2 |
| Juniper | Netscreen Screenos | 2.6.1r3 |
| Juniper | Netscreen Screenos | 2.6.1r4 |
| Juniper | Netscreen Screenos | 2.6.1r5 |
| Juniper | Netscreen Screenos | 2.6.1r6 |
| Juniper | Netscreen Screenos | 2.6.1r7 |
| Juniper | Netscreen Screenos | 2.6.1r8 |
| Juniper | Netscreen Screenos | 2.6.1r9 |
| Juniper | Netscreen Screenos | 2.6.1r10 |
| Juniper | Netscreen Screenos | 2.6.1r11 |
| Juniper | Netscreen Screenos | 2.6.1r12 |
| Juniper | Netscreen Screenos | 2.7.1 |
| Juniper | Netscreen Screenos | 2.7.1r1 |
| Juniper | Netscreen Screenos | 2.7.1r2 |
| Juniper | Netscreen Screenos | 2.7.1r3 |
| Juniper | Netscreen Screenos | 2.8 |
| Juniper | Netscreen Screenos | 2.8_r1 |
| Juniper | Netscreen Screenos | 2.10_r3 |
| Juniper | Netscreen Screenos | 2.10_r4 |
| Juniper | Netscreen Screenos | 3.0.0 |
| Juniper | Netscreen Screenos | 3.0.0r1 |
| Juniper | Netscreen Screenos | 3.0.0r2 |
| Juniper | Netscreen Screenos | 3.0.0r3 |
| Juniper | Netscreen Screenos | 3.0.0r4 |
| Juniper | Netscreen Screenos | 3.0.1 |
| Juniper | Netscreen Screenos | 3.0.1r1 |
| Juniper | Netscreen Screenos | 3.0.1r2 |
| Juniper | Netscreen Screenos | 3.0.1r3 |
Showing 50 of 132 affected configurations. See NVD for the full list.
References
- http://secunia.com/advisories/16474/Vendor Advisory
- http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htmExploit, Vendor Advisory
- http://secunia.com/advisories/16474/Vendor Advisory
- http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htmExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2005-2640?
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.
How severe is CVE-2005-2640?
Severity scoring for CVE-2005-2640 is pending analysis. The EPSS model estimates a 7.09% probability of exploitation in the next 30 days.
How do I fix CVE-2005-2640?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2005
- CVE-2005-2634Buffer overflow in the Log-SCR function in the "Log to Scree…
- CVE-2005-2635Multiple directory traversal vulnerabilities in phpAdsNew an…
- CVE-2005-2636SQL injection vulnerability in lib-view-direct.inc.php in ph…
- CVE-2005-2637Multiple SQL injection vulnerabilities in PHPFreeNews 1.40 a…
- CVE-2005-2638Multiple cross-site scripting (XSS) vulnerabilities in PHPFr…
- CVE-2005-2639Buffer overflow in Chris Moneymaker's World Poker Championsh…
- CVE-2005-2641Unknown vulnerability in pam_ldap before 180 does not proper…
- CVE-2005-2642Buffer overflow in the mutt_decode_xbit function in Handler.…
- CVE-2005-2643Tor 0.1.0.13 and earlier, and experimental versions 0.1.1.4-…
- CVE-2005-2644Buffer overflow in JaguarEditControl.dll in Isemarket Jaguar…
- CVE-2005-2645Unknown vulnerability in Xerox MicroServer Web Server in Doc…
- CVE-2005-2646Unknown vulnerability in Xerox MicroServer Web Server in Doc…
Are you affected by CVE-2005-2640?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST