Cisco Adaptive Security Appliance Software
CVE-2019-1697
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.
What this means for your business
- It affects Cisco Adaptive Security Appliance Software. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
What to do
- 1Check whether your company or your suppliers run Cisco Adaptive Security Appliance Software, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 6.8 (v3.0)
- Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H- Weakness
- CWE-20
- Assigned by
- psirt@cisco.com
Dates
- Published
- 2019-05-03
- Last modified
- 2026-08-11
- Sources
- NVD
Affected products
- Cisco Adaptive Security Appliance Software- 9.6.4.25, 9.7 - 9.8.4, 9.9 - 9.9.2.50, 9.10 - 9.10.1.17
- Cisco Asa 5505all versions
- Cisco Asa 5510all versions
- Cisco Asa 5512-Xall versions
- Cisco Asa 5515-Xall versions
- Cisco Asa 5520all versions
- Cisco Asa 5525-Xall versions
- Cisco Asa 5540all versions
- Cisco Asa 5545-Xall versions
- Cisco Asa 5550all versions
- Cisco Asa 5555-Xall versions
- Cisco Asa 5580all versions
As listed in the NVD configuration data. Not a statement about your estate.