CVE-2019-1601

Summary

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).

Affected Software

VendorProductVersion RangeStatus
CiscoMDS 9000 Series Multilayer Switchesunspecified < 6.2(25)affected
CiscoMDS 9000 Series Multilayer Switchesunspecified < 8.1(1b)affected
CiscoMDS 9000 Series Multilayer Switchesunspecified < 8.3(1)affected
CiscoNexus 3000 Series Switchesunspecified < 7.0(3)I4(9)affected
CiscoNexus 3000 Series Switchesunspecified < 7.0(3)I7(4)affected
CiscoNexus 3500 Platform Switchesunspecified < 6.0(2)A8(10)affected
CiscoNexus 3500 Platform Switchesunspecified < 7.0(3)I7(4)affected
CiscoNexus 3600 Platform Switchesunspecified < 7.0(3)F3(5)affected
CiscoNexus 2000, 5500, 5600, and 6000 Series Switchesunspecified < 7.1(5)N1(1b)affected
CiscoNexus 2000, 5500, 5600, and 6000 Series Switchesunspecified < 7.3(3)N1(1)affected
CiscoNexus 7000 and 7700 Series Switchesunspecified < 6.2(22)affected
CiscoNexus 7000 and 7700 Series Switchesunspecified < 7.3(3)D1(1)affected
CiscoNexus 7000 and 7700 Series Switchesunspecified < 8.2(3)affected
CiscoNexus 9000 Series Switches-Standaloneunspecified < 7.0(3)I4(9)affected
CiscoNexus 9000 Series Switches-Standaloneunspecified < 7.0(3)I7(4)affected
CiscoNexus 9500 R-Series Line Cards and Fabric Modulesunspecified < 7.0(3)F3(5)affected

Weaknesses

  • CWE-284: CWE-284

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References