Vulnerability Description
A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error in TCP-based packet inspection, which could cause the TCP packet to have an invalid Layer 2 (L2)-formatted header. An attacker could exploit this vulnerability by sending a crafted TCP packet sequence to the targeted device. A successful exploit could allow the attacker to cause a DoS condition.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Adaptive Security Appliance Software | < 9.4.4.34 |
| Cisco | Asa 5505 | - |
| Cisco | Asa 5510 | - |
| Cisco | Asa 5512-X | - |
| Cisco | Asa 5515-X | - |
| Cisco | Asa 5520 | - |
| Cisco | Asa 5525-X | - |
| Cisco | Asa 5540 | - |
| Cisco | Asa 5545-X | - |
| Cisco | Asa 5550 | - |
| Cisco | Asa 5555-X | - |
| Cisco | Asa 5580 | - |
| Cisco | Asa 5585-X | - |
| Cisco | Firepower Threat Defense | >= 6.0.0, < 6.2.3.12 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/108176Broken LinkThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/108176Broken LinkThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1687?
CVE-2019-1687 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to...
How severe is CVE-2019-1687?
CVE-2019-1687 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1687?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Adaptive Security Appliance Software, Cisco Asa 5505, Cisco Asa 5510, Cisco Asa 5512-X, Cisco Asa 5515-X.