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CVE-2021-34783
CVE ID
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CVE-2021-34783
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 software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability.
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CVSS V3 Severity and Metrics
General Information
Vendors
- cisco
Products
- adaptive security appliance software,
- asa 5505 firmware 009.016(001),
- asa 5505 firmware 009.016(001.025),
- asa 5512-x firmware 009.016(001),
- asa 5512-x firmware 009.016(001.025),
- asa 5515-x firmware 009.016(001),
- asa 5515-x firmware 009.016(001.025),
- asa 5525-x firmware 009.016(001),
- asa 5525-x firmware 009.016(001.025),
- asa 5545-x firmware 009.016(001),
- asa 5545-x firmware 009.016(001.025),
- asa 5555-x firmware 009.016(001),
- asa 5555-x firmware 009.016(001.025),
- asa 5580 firmware 009.016(001),
- asa 5580 firmware 009.016(001.025),
- asa 5585-x firmware 009.016(001),
- asa 5585-x firmware 009.016(001.025),
- firepower threat defense
References
Additional Info
Technical Analysis
Report as Exploited in the Wild
CVE ID
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