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CVE-2017-6632

HIGHCVSS 7.5/10EPSS 2.39%

Last modified

CVE-2017-6632 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the logging configuration of Secure Sockets Layer (SSL) policies for Cisco FirePOWER System Software 5.3.0 through 6.2.2 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to high consumption of system resources. The vulnerability is due to the logging of certain TCP packets by the affected software. EPSS estimates a 2.39% chance of exploitation in the next 30 days.

Description

A vulnerability in the logging configuration of Secure Sockets Layer (SSL) policies for Cisco FirePOWER System Software 5.3.0 through 6.2.2 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to high consumption of system resources. The vulnerability is due to the logging of certain TCP packets by the affected software. An attacker could exploit this vulnerability by sending a flood of crafted TCP packets to an affected device. A successful exploit could allow the attacker to cause a DoS condition. The success of an exploit is dependent on how an administrator has configured logging for SSL policies for a device. This vulnerability affects Cisco FirePOWER System Software that is configured to log connections by using SSL policy default actions. Cisco Bug IDs: CSCvd07072.

Metrics

CVSS 3.0
7.5/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
2.39%

82.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoFirepower Threat Defense5.3.0
CiscoFirepower Threat Defense5.4.0
CiscoFirepower Threat Defense6.0.0
CiscoFirepower Threat Defense6.0.1
CiscoFirepower Threat Defense6.0.1.3
CiscoFirepower Threat Defense6.1.0
CiscoFirepower Threat Defense6.1.0.2
CiscoFirepower Threat Defense6.2.0
CiscoFirepower Threat Defense6.2.1
CiscoFirepower Threat Defense6.2.2
CiscoFirepower Threat Defense6.2_base

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-6632?
A vulnerability in the logging configuration of Secure Sockets Layer (SSL) policies for Cisco FirePOWER System Software 5.3.0 through 6.2.2 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to high consumption of system resources. The vulnerability is due to the logging of certain TCP packets by the affected software. An attacker could exploit this vulnerability by sending a flood of crafted TCP packets to an affected device. A successful exploit could allow the attacker to cause a DoS condition. The success of an exploit is dependent on how an administrator has configured logging for SSL policies for a device. This vulnerability affects Cisco FirePOWER System Software that is configured to log connections by using SSL policy default actions. Cisco Bug IDs: CSCvd07072.
How severe is CVE-2017-6632?
CVE-2017-6632 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.39% probability of exploitation in the next 30 days.
How do I fix CVE-2017-6632?
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