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SNMP Remote Code Execution Vulnerabilities in Cisco IOS and IOS XE

Hiago Mendes
Beginner
Beginner

Hi everyone! I had received a security report from Cisco for SNMP vulnerabilities that can affect devices running SNMP versions 1, 2c and 3. The report is here (REPORT CISCO)

The following MIBs are vulnerable:

  • ADSL-LINE-MIB
  • ALPS-MIB
  • CISCO-ADSL-DMT-LINE-MIB
  • CISCO-BSTUN-MIB
  • CISCO-MAC-AUTH-BYPASS-MIB
  • CISCO-SLB-EXT-MIB
  • CISCO-VOICE-DNIS-MIB
  • CISCO-VOICE-NUMBER-EXPANSION-MIB
  • TN3270E-RT-MIB

The question is.... If I type "sh snmp mib | b [MIB NAME]" and it doesnt appears... Can I assume my device is NOT running that MIB? I'm right?

Example:

Router#sh snmp mib | b CISCO-VOICE-NUMBER-EXPANSION-MIB

Router#

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