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Cisco Bug: CSCum00468 - TACACSD process crash

Last Modified

Aug 06, 2018

Products (3)

  • Cisco Carrier Routing System
  • Cisco NCS 6008 - 8-Slot Chassis
  • Cisco IOS XR Software

Known Affected Releases

4.2.3.BASE 5.0.1.BASE

Description (partial)

Symptom:
A vulnerability in TACACS  processing of Cisco IOS XR could allow an unauthenticated, remote attacker to cause a reload of the TACACSd on the affected device.

The vulnerability is due to improper parsing of a malformed TACACS  packet. An attacker could exploit this vulnerability by sending a malformed TACSCS  packet to be processed by an affected 
device. An exploit could allow the attacker to cause a reload of the TACACS  process on the affected device.
 
Conditions:
TACACSd configured.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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