high
7.8
CWE
732 284
Advisory Published
Updated

CVE-2019-1601

First published: Fri Mar 08 2019(Updated: )

A vulnerability in the filesystem permissions of Cisco NX-OS Software could allow an authenticated, local attacker to gain read and write access to a critical configuration file. The vulnerability is due to a failure to impose strict filesystem permissions on the targeted device. An attacker could exploit this vulnerability by accessing and modifying restricted files. A successful exploit could allow an attacker to use the content of this configuration file to bypass authentication and log in as any user of the device. MDS 9000 Series Multilayer Switches are affected in versions prior to 6.2(25), 8.1(1b), and 8.3(1). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 6.0(2)A8(10) and 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.1(5)N1(1b) and 7.3(3)N1(1). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22), 7.3(3)D1(1), and 8.2(3). Nexus 9000 Series Switches-Standalone are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Nx-os>=8.2<8.3\(1\)
Cisco MDS 9000
Cisco Nx-os>=7.0\(3\)<7.0\(3\)i7\(4\)
Cisco Nexus 3500
Cisco Nx-os>=7.0\(3\)i5<7.0\(3\)i7\(4\)
Cisco Nexus 3000
Cisco Nx-os>=7.0\(3\)f3<7.0\(3\)f3\(5\)
Cisco Nexus 3600
Cisco Nexus 9000
Cisco Nx-os>=7.0\(3\)f1<7.0\(3\)f3\(5\)
Cisco Nexus 9500
Cisco Nx-os>=7.3<8.1\(1b\)
Cisco Nx-os<6.2\(25\)
Cisco Nx-os<7.0\(3\)i4\(9\)
Cisco Nexus 7000
Cisco Nexus 7700
Cisco Nx-os>=7.2<7.3\(3\)d1\(1\)
Cisco Nx-os<6.2\(22\)
Cisco Nx-os<6.0\(2\)a8\(10\)
Cisco Nx-os>=7.2<7.3\(3\)n1\(1\)
Cisco Nexus 2000
Cisco Nexus 5500
Cisco Nexus 5600
Cisco Nexus 6000
Cisco Nx-os<7.1\(5\)n1\(1b\)
Cisco Nx-os>=8.0<8.1\(2\)

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Reference Links

Frequently Asked Questions

  • What is CVE-2019-1601?

    CVE-2019-1601 is a vulnerability in the filesystem permissions of Cisco NX-OS Software that could allow an authenticated attacker to gain read and write access to a critical configuration file.

  • How severe is CVE-2019-1601?

    CVE-2019-1601 has a severity rating of 7.8 (High).

  • Which systems are affected by CVE-2019-1601?

    Cisco NX-OS Software versions 8.2 (up to 8.3(1)) and 7.0(3) (up to 7.0(3)i7(4)) are affected by CVE-2019-1601.

  • How can an attacker exploit CVE-2019-1601?

    An authenticated, local attacker can exploit CVE-2019-1601 by exploiting the failure to impose strict filesystem permissions on the targeted device.

  • Where can I find more information about CVE-2019-1601?

    You can find more information about CVE-2019-1601 on the following websites: [SecurityFocus](http://www.securityfocus.com/bid/107404) and [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-file-access).

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