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Cisco Bug: CSCum40651 - Tacacs+ per CLI authorization failure upon entering CLI > 64 char

Last Modified

Feb 15, 2018

Products (5)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

5.2(9) 6.1(3) 6.1(4)

Description (partial) 

Symptom:
You can no longer perform a CLI [config cli or regular show cli] i.e. > 64 characters [including white spaces and full CLIs for eg: po1 will be expanded to port-channel 1 and counted as total 14 characters]. NXOS will print aaa authorization error.

Nexus7K-Customer-Switch(config)# int po21,po22,po23,po24
Error: AAA authorization failed AAA_AUTHOR_STATUS_METHOD=16(0x10)

Conditions:
-Tacacs+ server should have per CLI authorization
-Tacacs+ server should have restricted CLI access for users
-CLI string entered should be greater than 64 characters
-Adjacent memory location for buffer where CLI string will be stored should have non-zero characters to simulate a non null terminated string
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Related Community Discussions
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