QID 317167

Date Published: 2022-05-17

QID 317167: Firepower Threat Defense (FTD) Software Snort Modbus Denial of Service (DoS) Vulnerability (cisco-sa-snort-dos-9D3hJLuj)

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

Affected Products
Firepower Threat Defense (FTD) Software - All platforms
Prior to 6.4.0.13
6.5.01 prior to 6.6.5.1
6.7.0 prior to 7.0.1
Note: This QID is not checking for the workarounds.

QID Detection Logic (Authenticated):
The check matches Cisco Firepower Threat Defense OS version retrieved via Unix Auth using "version" command.

successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as High - 7.8 severity.

Solution

Customers are advised to refer to cisco-sa-snort-dos-9D3hJLuj for more information.

Vendor References

cisco-sa-snort-dos-9D3hJLuj - tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj

CVEs related to QID 317167

CVE-2022-20685 |

Software Advisories

Advisory ID	Software	Component	Link
cisco-sa-snort-dos-9D3hJLuj			tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj

By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].