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CVE-2023-20177
CVE ID
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CVE-2023-20177
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A vulnerability in the SSL file policy implementation of Cisco Firepower Threat Defense (FTD) Software that occurs when the SSL/TLS connection is configured with a URL Category and the Snort 3 detection engine could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability exists because a logic error occurs when a Snort 3 detection engine inspects an SSL/TLS connection that has either a URL Category configured on the SSL file policy or a URL Category configured on an access control policy with TLS server identity discovery enabled. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted SSL/TLS connection through an affected device. A successful exploit could allow the attacker to trigger an unexpected reload of the Snort 3 detection engine, resulting in either a bypass or denial of service (DoS) condition, depending on device configuration. The Snort 3 detection engine will restart automatically. No manual intervention is required.
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CVSS V3 Severity and Metrics
General Information
Vendors
Products
- firepower threat defense 7.0.0,
- firepower threat defense 7.0.0.1,
- firepower threat defense 7.0.1,
- firepower threat defense 7.0.1.1,
- firepower threat defense 7.0.2,
- firepower threat defense 7.0.2.1,
- firepower threat defense 7.0.3,
- firepower threat defense 7.0.4,
- firepower threat defense 7.0.5,
- firepower threat defense 7.1.0,
- firepower threat defense 7.1.0.1,
- firepower threat defense 7.1.0.2,
- firepower threat defense 7.1.0.3,
- firepower threat defense 7.2.0,
- firepower threat defense 7.2.0.1,
- firepower threat defense 7.2.1,
- firepower threat defense 7.2.2,
- firepower threat defense 7.2.3,
- firepower threat defense 7.3.0,
- firepower threat defense 7.3.1,
- firepower threat defense 7.3.1.1
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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