#VU48949 Information disclosure in Cisco Jabber for Windows and Cisco Jabber for MacOS - CVE-2020-27132

Vulnerability identifier: #VU48949

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-27132

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Jabber for Windows
Client/Desktop applications / Messaging software
Cisco Jabber for MacOS
Client/Desktop applications / Messaging software

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper validation of message contents. A remote authenticated attacker can send specially crafted messages and gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Jabber for Windows: 12.1 - 12.9

Cisco Jabber for MacOS: 12.7 - 12.9

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.