CVE-2019-1598: Cisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service Vulnerabilities
First published: Wed Mar 06 2019(Updated: )
Multiple vulnerabilities in the implementation of the Lightweight Directory Access Protocol (LDAP) feature in Cisco FXOS Software and Cisco NX-OS 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 by an affected device. An attacker could exploit these vulnerabilities by sending an LDAP packet crafted using Basic Encoding Rules (BER) to an affected device. The LDAP packet must have a source IP address of an LDAP server configured on the targeted device. A successful exploit could cause the affected device to reload, resulting in a DoS condition. Firepower 4100 Series Next-Generation Firewalls are affected in versions prior to 2.0.1.201, 2.2.2.54, and 2.3.1.75. Firepower 9300 Security Appliances are affected in versions prior to 2.0.1.201, 2.2.2.54, and 2.3.1.75. MDS 9000 Series Multilayer Switches are affected in versions prior to 8.2(1). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(1). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(2). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(20), 7.3(2)D1(1), and 8.2(1). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(1). UCS 6200 and 6300 Fabric Interconnect are affected in versions prior to 3.2(2b).
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Extensible Operating System | >=2.3<2.3.1.75 | |
| Cisco Firepower 4100 | ||
| Cisco Firepower 9300 | ||
| Cisco Nx-os | >=7.3<8.2\(1\) | |
| Cisco MDS 9000 | ||
| Cisco Nx-os | >=7.0\(3\)i5<7.0\(3\)i7\(1\) | |
| Cisco Nexus 3000 | ||
| Cisco Nx-os | >=7.0\(3\)<7.0\(3\)i7\(2\) | |
| Cisco Nexus 3500 | ||
| Cisco Nx-os | >=8.0<8.2\(1\) | |
| Cisco Nexus 7000 | ||
| Cisco Nexus 7700 | ||
| Cisco Nexus 9000 | ||
| Cisco Firepower Extensible Operating System | >=2.1<2.2.2.54 | |
| Cisco Nx-os | >=7.2<7.3\(2\)d1\(1\) | |
| Cisco Nx-os | <6.2\(20\) | |
| Cisco Firepower Extensible Operating System | <2.0.1.201 | |
| Cisco Nx-os | <3.2\(2b\) | |
| Cisco UCS 6200 | ||
| Cisco Ucs 6300 | ||
| Cisco Nx-os | >=5.2<6.2\(21\) | |
| Cisco Nx-os | <7.0\(3\)i4\(7\) | |
| Cisco Nx-os | <6.0\(2\)a8\(11\) |
Remedy
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxosldap
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Cisco vulnerability?
The vulnerability ID for this Cisco vulnerability is CVE-2019-1598.
What is the severity of CVE-2019-1598?
The severity of CVE-2019-1598 is high, with a severity value of 7.5.
What software is affected by CVE-2019-1598?
The affected software includes Cisco FXOS Software and Cisco NX-OS Software.
How can an attacker exploit CVE-2019-1598?
An unauthenticated, remote attacker can exploit CVE-2019-1598 by causing a affected device to reload, resulting in a denial of service (DoS) condition.
How can I find more information about CVE-2019-1598?
You can find more information about CVE-2019-1598 in the SecurityFocus and Cisco Security Advisory websites.
- collector/nvd-index
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/remedy
- agent/severity
- agent/author
- agent/last-modified-date
- agent/title
- agent/first-publish-date
- agent/tags
- agent/description
- agent/event
- vendor/cisco
- canonical/cisco firepower extensible operating system
- version/cisco firepower extensible operating system/2.3
- canonical/cisco firepower 4100
- canonical/cisco firepower 9300
- canonical/cisco nx-os
- version/cisco nx-os/7.3
- canonical/cisco mds 9000
- version/cisco nx-os/7.0\(3\)i5
- canonical/cisco nexus 3000
- version/cisco nx-os/7.0\(3\)
- canonical/cisco nexus 3500
- version/cisco nx-os/8.0
- canonical/cisco nexus 7000
- canonical/cisco nexus 7700
- canonical/cisco nexus 9000
- version/cisco firepower extensible operating system/2.1
- version/cisco nx-os/7.2
- canonical/cisco ucs 6200
- canonical/cisco ucs 6300
- version/cisco nx-os/5.2