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CVE-2017-6607

UnknownEPSS 2.39%

Last modified

CVE-2017-6607 is a vulnerability of currently unknown severity. A vulnerability in the DNS code of Cisco ASA Software could allow an unauthenticated, remote attacker to cause an affected device to reload or corrupt the information present in the device's local DNS cache. The vulnerability is due to a flaw in handling crafted DNS response messages. EPSS estimates a 2.39% chance of exploitation in the next 30 days.

Description

A vulnerability in the DNS code of Cisco ASA Software could allow an unauthenticated, remote attacker to cause an affected device to reload or corrupt the information present in the device's local DNS cache. The vulnerability is due to a flaw in handling crafted DNS response messages. An attacker could exploit this vulnerability by triggering a DNS request from the Cisco ASA Software and replying with a crafted response. A successful exploit could cause the device to reload, resulting in a denial of service (DoS) condition or corruption of the local DNS cache information. Note: Only traffic directed to the affected device can be used to exploit this vulnerability. This vulnerability affects Cisco ASA Software configured in routed or transparent firewall mode and single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.12) 9.2(4.18) 9.4(3.12) 9.5(3.2) 9.6(2.2). Cisco Bug IDs: CSCvb40898.

Metrics

EPSS Probability
2.39%

81.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAdaptive Security Appliance Software9.0.1
CiscoAdaptive Security Appliance Software9.0.2
CiscoAdaptive Security Appliance Software9.0.2.10
CiscoAdaptive Security Appliance Software9.0.3
CiscoAdaptive Security Appliance Software9.0.3.6
CiscoAdaptive Security Appliance Software9.0.3.8
CiscoAdaptive Security Appliance Software9.0.4
CiscoAdaptive Security Appliance Software9.0.4.1
CiscoAdaptive Security Appliance Software9.0.4.5
CiscoAdaptive Security Appliance Software9.0.4.7
CiscoAdaptive Security Appliance Software9.0.4.17
CiscoAdaptive Security Appliance Software9.0.4.20
CiscoAdaptive Security Appliance Software9.0.4.24
CiscoAdaptive Security Appliance Software9.0.4.26
CiscoAdaptive Security Appliance Software9.0.4.29
CiscoAdaptive Security Appliance Software9.0.4.33
CiscoAdaptive Security Appliance Software9.0.4.35
CiscoAdaptive Security Appliance Software9.0.4.37
CiscoAdaptive Security Appliance Software9.0.4.40
CiscoAdaptive Security Appliance Software9.0.4.42
CiscoAdaptive Security Appliance Software9.1\(7\)4
CiscoAdaptive Security Appliance Software9.1\(7\)6
CiscoAdaptive Security Appliance Software9.1\(7\)7
CiscoAdaptive Security Appliance Software9.1\(7\)9
CiscoAdaptive Security Appliance Software9.1\(7\)11
CiscoAdaptive Security Appliance Software9.1.1
CiscoAdaptive Security Appliance Software9.1.1.4
CiscoAdaptive Security Appliance Software9.1.2
CiscoAdaptive Security Appliance Software9.1.2.8
CiscoAdaptive Security Appliance Software9.1.3
CiscoAdaptive Security Appliance Software9.1.3.2
CiscoAdaptive Security Appliance Software9.1.4
CiscoAdaptive Security Appliance Software9.1.4.5
CiscoAdaptive Security Appliance Software9.1.5
CiscoAdaptive Security Appliance Software9.1.5.10
CiscoAdaptive Security Appliance Software9.1.5.12
CiscoAdaptive Security Appliance Software9.1.5.15
CiscoAdaptive Security Appliance Software9.1.5.21
CiscoAdaptive Security Appliance Software9.1.6
CiscoAdaptive Security Appliance Software9.1.6.1
CiscoAdaptive Security Appliance Software9.1.6.4
CiscoAdaptive Security Appliance Software9.1.6.6
CiscoAdaptive Security Appliance Software9.1.6.8
CiscoAdaptive Security Appliance Software9.1.6.10
CiscoAdaptive Security Appliance Software9.2\(0.0\)
CiscoAdaptive Security Appliance Software9.2\(0.104\)
CiscoAdaptive Security Appliance Software9.2\(3.1\)
CiscoAdaptive Security Appliance Software9.2.1
CiscoAdaptive Security Appliance Software9.2.2
CiscoAdaptive Security Appliance Software9.2.2.4

Showing 50 of 109 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-6607?
A vulnerability in the DNS code of Cisco ASA Software could allow an unauthenticated, remote attacker to cause an affected device to reload or corrupt the information present in the device's local DNS cache. The vulnerability is due to a flaw in handling crafted DNS response messages. An attacker could exploit this vulnerability by triggering a DNS request from the Cisco ASA Software and replying with a crafted response. A successful exploit could cause the device to reload, resulting in a denial of service (DoS) condition or corruption of the local DNS cache information. Note: Only traffic directed to the affected device can be used to exploit this vulnerability. This vulnerability affects Cisco ASA Software configured in routed or transparent firewall mode and single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.12) 9.2(4.18) 9.4(3.12) 9.5(3.2) 9.6(2.2). Cisco Bug IDs: CSCvb40898.
How severe is CVE-2017-6607?
Severity scoring for CVE-2017-6607 is pending analysis. The EPSS model estimates a 2.39% probability of exploitation in the next 30 days.
How do I fix CVE-2017-6607?
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.

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Source: NVD / NIST