Multiple Cisco WebEx Products Multiple Arbitrary Code Execution Vulnerabilities

Risk

Medium

Date Discovered

November 6, 2019

Description

Multiple Cisco WebEx products are prone to multiple local code-execution vulnerabilities. Successfully exploiting these issues will allow attackers to execute arbitrary code within the context of the application. These issues are being tracked by Cisco Bug IDs CSCvq32301, CSCvq36083, CSCvq36098, CSCvq84379,CSCvq84396, CSCvq84421, CSCvq84438, CSCvq86070, CSCvq86075, CSCvq86152, CSCvq86160, CSCvq86181, CSCvq86224, CSCvq86249, CSCvq86254

Technologies Affected

  • Cisco WebEx Meetings Server 1.0
  • Cisco WebEx Meetings Server 1.1
  • Cisco WebEx Meetings Server 1.5
  • Cisco WebEx Meetings Server 1.5(.1.131)
  • Cisco WebEx Meetings Server 1.5(.1.6)
  • Cisco WebEx Meetings Server 1.5.1.131
  • Cisco WebEx Meetings Server 1.5.1.6
  • Cisco WebEx Meetings Server 2.0
  • Cisco WebEx Meetings Server 2.0MR2
  • Cisco WebEx Meetings Server 2.5
  • Cisco WebEx Meetings Server 2.5 Base
  • Cisco WebEx Meetings Server 2.5 MR1
  • Cisco WebEx Meetings Server 2.5.0.997
  • Cisco WebEx Meetings Server 2.5.1.5
  • Cisco WebEx Meetings Server 2.5.99.2
  • Cisco WebEx Meetings Server 2.5MR2
  • Cisco WebEx Meetings Server 2.5MR6 Patch 6
  • Cisco WebEx Meetings Server 2.6
  • Cisco WebEx Meetings Server 2.6.0.8
  • Cisco WebEx Meetings Server 2.6.1.30
  • Cisco WebEx Meetings Server 2.6MR3 SP 4
  • Cisco WebEx Meetings Server 2.7
  • Cisco WebEx Meetings Server 2.7.1.3047
  • Cisco WebEx Meetings Server 2.7MR2 SP 6
  • Cisco WebEx Meetings Server 2.8
  • Cisco WebEx Meetings Server 2.8 MR2
  • Cisco WebEx Meetings Server 2.8 MR3 SP1
  • Cisco WebEx Meetings Server 2.8 SP 1
  • Cisco WebEx Meetings Server 2.8.1.1019
  • Cisco WebEx Meetings Server 2.8.1.1023
  • Cisco WebEx Meetings Server 2.8.1.1034
  • Cisco WebEx Meetings Server 2.8.1.2039
  • Cisco WebEx Meetings Server 2.8MR3 SP2
  • Cisco WebEx Meetings Server 2.8MR3 SP3
  • Cisco WebEx Meetings Server 3.0
  • Cisco WebEx Meetings Server 3.0 MR2 SP2
  • Cisco WebEx Meetings Server 3.0 Patch 1
  • Cisco WebEx Meetings Server 3.0MR1
  • Cisco WebEx Meetings Server 3.0MR2
  • Cisco WebEx Meetings Server 3.0MR2 Patch 1
  • Cisco WebEx Meetings Server 3.0MR2 SP2
  • Cisco WebEx Meetings Server 3.0MR2 SP4
  • Cisco WebEx Meetings Server 4.0
  • Cisco WebEx Meetings Server 4.0MR1
  • Cisco WebEx Network Recording Player
  • Cisco WebEx Player
  • Cisco Webex Meetings Online 1.0
  • Cisco Webex Meetings Online 1.3.18.1
  • Cisco Webex Meetings Online 1.3.35
  • Cisco Webex Meetings Online 1.3.37
  • Cisco Webex Meetings Online 1.3.40
  • Cisco Webex Meetings Online 1.3.42
  • Cisco Webex Meetings Online 1.3.43

Recommendations

Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
Restrict local access to trusted and accountable individuals only.

Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Implement multiple redundant layers of security.
Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker's ability to exploit this vulnerability to execute arbitrary code.

Updates are available. Please see the references or vendor advisory for more information.

References

Credits

Kushal Arvind Shah and Yici Zhang of Fortinet’s FortiGuard Labs


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