Cisco Cisco Firepower Threat Defense Software

CVE-2023-20031
MEDIUM 4.0

At a glance

Source
NVD
EPSS
EPSS 0.28 % Β· percentile 21 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Modified

Description

A vulnerability in the SSL/TLS certificate handling of Snort 3 Detection Engine integration with Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a logic error that occurs when an SSL/TLS certificate that is under load is accessed when it is initiating an SSL connection. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a high rate of SSL/TLS connection requests to be inspected by the Snort 3 detection engine on an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in either a bypass or a denial of service (DoS) condition, depending on device configuration. The Snort detection engine will restart automatically. No manual intervention is required.

Weaknesses (CWE)

  • CWE-244 β€” Improper Clearing of Heap Memory Before Release

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:Ncisco
CVSS 3.1MEDIUM 4.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:NNVD Β· psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 5.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:LNVD Β· nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco Β· Cisco Firepower Threat Defense Softwareaffected 6.7.0 ; affected 6.7.0.1 ; affected 6.7.0.2 ; affected 6.7.0.3 ; affected 7.0.0 ; affected 7.0.0.1

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST β€” attribution requested
ENISA EUVDENISA β€” reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain β€” this product uses data from the NVD API but is not endorsed or certified by the NVD