Vulnerability identifier: #VU48951

Vulnerability risk: Medium

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27134

CWE-ID: CWE-89

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
Cisco Jabber for Android and iOS
Client/Desktop applications / Messaging software

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data within the message contents. A remote authenticated attacker can send a specially crafted XMPP messages, trick a victim to interact with a message and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

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

Cisco Jabber for Android and iOS: 12.8 - 12.9

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External links
http://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.