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CVE-2006-3906

UnknownEPSS 6.75%

Last modified

CVE-2006-3906 is a vulnerability of currently unknown severity. Internet Key Exchange (IKE) version 1 protocol, as implemented on Cisco IOS, VPN 3000 Concentrators, and PIX firewalls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of IKE Phase-1 packets that exceed the session expiration rate. NOTE: it has been argued that this is due to a design weakness of the IKE version 1 protocol, in which case other vendors and implementations would also be affected.. EPSS estimates a 6.75% chance of exploitation in the next 30 days.

Description

Internet Key Exchange (IKE) version 1 protocol, as implemented on Cisco IOS, VPN 3000 Concentrators, and PIX firewalls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of IKE Phase-1 packets that exceed the session expiration rate. NOTE: it has been argued that this is due to a design weakness of the IKE version 1 protocol, in which case other vendors and implementations would also be affected.

Metrics

EPSS Probability
6.75%

93.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
CiscoIosAll versions
CiscoVpn 3001 ConcentratorAll versions
CiscoVpn 3015 ConcentratorAll versions
CiscoVpn 3020 ConcentratorAll versions
CiscoVpn 3030 ConcentatorAll versions
CiscoVpn 3060 ConcentratorAll versions
CiscoVpn 3080 ConcentratorAll versions
CiscoAdaptive Security Appliance Software7.0
CiscoAdaptive Security Appliance Software7.0\(4\)
CiscoAdaptive Security Appliance Software7.0\(5\)
CiscoAdaptive Security Appliance Software7.0.1.4
CiscoAdaptive Security Appliance Software7.0.4.3
CiscoAdaptive Security Appliance Software7.1\(2\)
CiscoVpn 3000 Concentrator Series Software2.0
CiscoVpn 3000 Concentrator Series Software2.5.2.a
CiscoVpn 3000 Concentrator Series Software2.5.2.b
CiscoVpn 3000 Concentrator Series Software2.5.2.c
CiscoVpn 3000 Concentrator Series Software2.5.2.d
CiscoVpn 3000 Concentrator Series Software2.5.2.f
CiscoVpn 3000 Concentrator Series Software3.0
CiscoVpn 3000 Concentrator Series Software3.0.3.a
CiscoVpn 3000 Concentrator Series Software3.0.3.b
CiscoVpn 3000 Concentrator Series Software3.0.4
CiscoVpn 3000 Concentrator Series Software3.1
CiscoVpn 3000 Concentrator Series Software3.1\(rel\)
CiscoVpn 3000 Concentrator Series Software3.1.1
CiscoVpn 3000 Concentrator Series Software3.1.2
CiscoVpn 3000 Concentrator Series Software3.1.4
CiscoVpn 3000 Concentrator Series Software3.5\(rel\)
CiscoVpn 3000 Concentrator Series Software3.5.1
CiscoVpn 3000 Concentrator Series Software3.5.2
CiscoVpn 3000 Concentrator Series Software3.5.3
CiscoVpn 3000 Concentrator Series Software3.5.4
CiscoVpn 3000 Concentrator Series Software3.5.5
CiscoVpn 3000 Concentrator Series Software3.6
CiscoVpn 3000 Concentrator Series Software3.6.1
CiscoVpn 3000 Concentrator Series Software3.6.3
CiscoVpn 3000 Concentrator Series Software3.6.5
CiscoVpn 3000 Concentrator Series Software3.6.7
CiscoVpn 3000 Concentrator Series Software3.6.7.a
CiscoVpn 3000 Concentrator Series Software3.6.7.b
CiscoVpn 3000 Concentrator Series Software3.6.7.c
CiscoVpn 3000 Concentrator Series Software3.6.7.d
CiscoVpn 3000 Concentrator Series Software3.6.7.f
CiscoVpn 3000 Concentrator Series Software3.6.7d
CiscoVpn 3000 Concentrator Series Software4.0
CiscoVpn 3000 Concentrator Series Software4.0.1
CiscoVpn 3000 Concentrator Series Software4.0.2
CiscoVpn 3000 Concentrator Series Software4.0.5.b
CiscoVpn 3000 Concentrator Series Software4.1

Showing 50 of 138 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2006-3906?
Internet Key Exchange (IKE) version 1 protocol, as implemented on Cisco IOS, VPN 3000 Concentrators, and PIX firewalls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of IKE Phase-1 packets that exceed the session expiration rate. NOTE: it has been argued that this is due to a design weakness of the IKE version 1 protocol, in which case other vendors and implementations would also be affected.
How severe is CVE-2006-3906?
Severity scoring for CVE-2006-3906 is pending analysis. The EPSS model estimates a 6.75% probability of exploitation in the next 30 days.
How do I fix CVE-2006-3906?
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.

Are you affected by CVE-2006-3906?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST