CVE-2019-1697
MediumCVSS 6.8Exploitation Probability (EPSS)
High risk79th percentile - higher than 79% of all known CVEs
Summary
A vulnerability in the Lightweight Directory Access Protocol (LDAP) feature implementation in 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. The issue is due to improper parsing of LDAP packets. An attacker could send a crafted LDAP packet using Basic Encoding Rules (BER), causing the device to reload.
Risk Assessment
The risk is that a remote attacker can disrupt device operation, potentially causing network service unavailability.
Recommendation
It is recommended to upgrade to a patched version and restrict LDAP access to trusted sources.
Original NVD description (English source)
A vulnerability in the implementation of the Lightweight Directory Access Protocol (LDAP) feature in 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. The vulnerabilities are due to the improper parsing of LDAP packets sent to an affected device. An attacker could exploit these vulnerabilities by sending a crafted LDAP packet, using Basic Encoding Rules (BER), to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.