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Cisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service Vulnerabilities

cisco-sa-20190306-nxosldap · High · Published · 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. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxosldap This advisory is part of the March 2019 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication, which includes 25 Cisco Security Advisories that describe 26 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: March 2019 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication.

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address these vulnerabilities.

CVEsCVE-2019-1597, CVE-2019-1598
Cisco Bug IDsCSCvd40241, CSCvd57308, CSCve02855, CSCve02871, CSCve57820, CSCve02867, CSCve58224, CSCve02858, CSCve02865, CSCve57816
CVSS ScoreBase 8.6
Base 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Unified Computing System (Managed), Cisco NX-OS Software 4.1(2), Cisco NX-OS Software 4.1(3), Cisco NX-OS Software 4.1(4), Cisco NX-OS Software 4.1(5), Cisco NX-OS Software 5.0(2a), Cisco NX-OS Software 5.0(3), Cisco NX-OS Software 5.0(5), Cisco NX-OS Software 5.0(2), Cisco NX-OS Software 4.2(2a), Cisco NX-OS Software 4.2(3), Cisco NX-OS Software 4.2(4), Cisco NX-OS Software 4.2(6), Cisco NX-OS Software 4.2(8), Cisco NX-OS Software 5.1(1), Cisco NX-OS Software 5.1(1a), Cisco NX-OS Software 5.1(3), Cisco NX-OS Software 5.1(4), Cisco NX-OS Software 5.1(5), Cisco NX-OS Software 5.1(6), Cisco NX-OS Software 5.1(2), Cisco NX-OS Software 5.2(3a), Cisco NX-OS Software 5.2(4), Cisco NX-OS Software 5.2(5), Cisco NX-OS Software 5.2(7), Cisco NX-OS Software 5.2(9), Cisco NX-OS Software 5.2(3), Cisco NX-OS Software 5.2(9a), Cisco NX-OS Software 6.1(1), Cisco NX-OS Software 6.1(2), Cisco NX-OS Software 6.1(3), Cisco NX-OS Software 6.1(4), Cisco NX-OS Software 6.1(4a), Cisco NX-OS Software 6.1(5), Cisco NX-OS Software 6.1(3)S5, Cisco NX-OS Software 6.1(3)S6, Cisco NX-OS Software 6.1(5a), Cisco NX-OS Software 6.0(1), Cisco NX-OS Software 6.0(2), Cisco NX-OS Software 6.0(3), Cisco NX-OS Software 6.0(4), Cisco NX-OS Software 6.1(2)I1(1), Cisco NX-OS Software 6.1(2)I3(3.78), Cisco NX-OS Software 6.1(2)I3(3b), Cisco NX-OS Software 7.0(3), Cisco NX-OS Software 7.0(2)I2(2c), Cisco NX-OS Software 7.3(1)D1(1B), Cisco NX-OS Software 7.3(1)N1(0.1), Cisco Firepower Extensible Operating System (FXOS) 2.0.1.68, Cisco Firepower Extensible Operating System (FXOS), Cisco NX-OS Software

Related Products

Product CVE Evidence
Firepower Extensible Operating System CVE-2019-1598 Cisco OpenVuln
Firepower Extensible Operating System CVE-2019-1597 Cisco OpenVuln
Cisco Unified Computing System (Managed) CVE-2019-1598 Cisco OpenVuln
Cisco Unified Computing System (Managed) CVE-2019-1597 Cisco OpenVuln
Cisco NX-OS Software CVE-2019-1598 Cisco OpenVuln
Cisco NX-OS Software CVE-2019-1597 Cisco OpenVuln
Cisco Firepower Extensible Operating System (FXOS) CVE-2019-1598 Cisco OpenVuln
Cisco Firepower Extensible Operating System (FXOS) CVE-2019-1597 Cisco OpenVuln
Cisco Firepower Extensible Operating System CVE-2019-1598 Cisco OpenVuln
Cisco Firepower Extensible Operating System CVE-2019-1597 Cisco OpenVuln