CVE-2022-20950
15.11.2022, 21:15
A vulnerability in the interaction of SIP and Snort 3 for 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 lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition.Enginsight
| Vendor | Product | Version |
|---|---|---|
| cisco | firepower_threat_defense | 7.2.0 |
| cisco | firepower_threat_defense | 7.2.0.1 |
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= Vulnerable software versions
Common Weakness Enumeration
- CWE-770 - Allocation of Resources Without Limits or ThrottlingThe software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
- CWE-754 - Improper Check for Unusual or Exceptional ConditionsThe software does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the software.