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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS/IOS XE/IOS XR Link Layer Discovery Protocol Bugs Let Remote Users on the Local Network Gain Elevated Privileges
SecurityTracker Alert ID:  1040586
SecurityTracker URL:  http://securitytracker.com/id/1040586
CVE Reference:   CVE-2018-0167, CVE-2018-0175   (Links to External Site)
Date:  Mar 28 2018
Impact:   User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Cisco IOS, IOS XE, and IOS XR. A remote user can gain elevated privileges.

A remote authenticated user on the local network can send a specially crafted Link Layer Discovery Protocol (LLDP) data unit (PDU) to trigger a buffer overflow and execute arbitrary code with elevated privileges on the target system [CVE-2018-0167].

A remote authenticated user on the local network can send a specially crafted LLDP PDU that, when a local user executes a specific show command via the command line interface, will trigger a format string error and execute arbitrary code with elevated privileges on the target system [CVE-2018-0175].

The vendor has assigned bug IDs CSCuo17183, CSCvd73487, and CSCvd73664 to these vulnerabilities.

Impact:   A remote user on the local network can gain elevated privileges on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp (Links to External Site)
Cause:   Boundary error, Input validation error, State error

Message History:   None.


 Source Message Contents

Subject:  https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp

 
 


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