Preview Tool

Cisco Bug: CSCun86062 - TS:SS:XE3.13: CUBE phone-proxy does not follow PKCS1 form CTL signature

Last Modified

Jul 16, 2020

Products (25)

  • Cisco IOS
  • Cisco ASR 901-6CZ-FS-D Router
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901S-4SG-F-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901S-2SG-F-D Router
  • Cisco ASR 901S-2SG-F-AH Router
  • Cisco ASR 901-6CZ-FT-A Router
View all products in Bug Search Tool Login Required

Known Affected Releases


Description (partial)

Newer phone models like 78xx (7861, 7821 etc) are not authenticating the CTL file signed by CUBE in phone-proxy mode.

The signature in CTL signing header does not follow PKCS1 format and the verification fails on phone side. 

This also affects 88XX series phones as well.

When configuring CUBE Lineside (phone-proxy mode).

Using 78XX or 88XX series phones with CUBE Lineside (phone-proxy mode).
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.