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Yealink Phone Privilege escalation Vulnerabilities


CVE Dictionary Entry: CVE-2019-14656

DATE PUBLISHED: 2019-10-08



Please Note: 

Yealink takes the security of our customers and our products seriously. This is a living document and may be subject to updates.The latest version of this document can be found atthe following URL: https://www.yealink.com/trust-center-resource




Vulnerability Summary

Yealink phones through 2019-08-04 do not properly check user roles in POST requests. Consequently, the default User account (with a password of user) can make admin requests via HTTP.




Solution

Yealink has released software updates to all affected phone models that contain fixes for these issues as well as other fixes and features. Please refer to the release notes for your particular endpoint for more information.



Phone Series

Product Family and Model

Fixed Software Release

SIP-T27P

45.83.0.120

SIP-T29G

46.83.0.120

SIP-T41P

36.83.0.120

SIP-T42G

29.83.0.120

SIP-T46G

28.83.0.120

SIP-T48G

35.83.0.120

SIP-T19P_E2

53.84.0.130

SIP-T21P_E2

52.84.0.130

SIP-T23G

44.84.0.130

SIP-T40P

54.84.0.130

SIP-T40G

76.84.0.130

SIP-T52S/T54S

70.84.0.80

SIP-CP920

78.86.0.15

T4XS Series Phones

66. 86.0.15

T4XU Series Phones

108.86.0.60

T3X Series Phones

124.86.0.60

T5X Series Phones

96.86.0.60

SIP-T58

58.86.0.5

SIP-CP960

73.86.0.5

SIP-VP59

91.86.0.5

SIP-T58W

150.86.0.35

SIP-CP965

143.86.0.5

VP59-Zoom

91.30.0.30

MP5X-Zoom

122.30.0.15

MP5X-Teams

122.15.0.9

T5X-Teams

58.15.0.53

CP960-Teams

73.15.0.163

CP965-Teams

143.15.0.12

W60B

146.85.0.35

W70B

77.85.0.60

W80B

103.83.0.80

W90B

130.85.0.25




VCS Series

Product Family and Model

Fixed Software Release

VC210 Series

118.320.0.15

MeetingEye400 Series

120.320.0.15

MeetingEye400Pro Series

133.320.0.15

MeetingEye800 Series

129.320.0.30

VP59-VCS

91.353.0.10

MeetingBoard65

155.310.0.15


The software, release notes, and other documentation for your voice endpoint can be found at: https://support.yealink.com/en/portal/home




Mitigation

Yealink recommends all customers upgrade to the latest version.




Contact

Any customer using an affected system who is concerned about this vulnerability within their deployment should contact Yealink Technical Support by visiting: https://support.yealink.com/en/portal/home for the latest information.

You might also find value in the high-level security guidance and security news located at: https://support.yealink.com/en/portal/home



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