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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2020-0436
Multiple Vulnerabilities in Cisco Jabber

Original Issue Date:December 15, 2020

Severity Rating: HIGH

Software Affected

  • Cisco Jabber for Windows, Jabber for MacOS and Jabber for mobile platforms.

Overview

Multiple Vulnerabilities have been reported in Cisco Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms could allow an attacker to execute arbitrary programs on the underlying operating system (OS) with elevated privileges or gain access to sensitive information.

Description

Multiple vulnerabilities exist in Cisco Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms  due to improper validation of message contents and handling of input to the application protocol handlers that could allow the attacker to execute arbitrary programs on the underlying operating system (OS) with elevated privileges. An attacker could exploit these vulnerabilities by sending specially crafted messages to end-user systems running Cisco Jabber.

Successful exploitation of these vulnerabilities could allow the attacker to cause the application on MacOS , Windows and mobile platforms to execute arbitrary programs on the targeted system with the privileges of the user account that is running the Cisco Jabber client software.

Solution

Apply appropriate updates as mentioned in:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-jabber-ZktzjpgO

Vendor Information

CISCO
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-jabber-ZktzjpgO

References

CISCO
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-jabber-ZktzjpgO

CVE Name
CVE-2020-27127
CVE-2020-27132
CVE-2020-26085
CVE-2020-27133
CVE-2020-27134

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-24368572

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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