Multiple vulnerabilities in Cisco Jabber Client Framework

Published: 2019-01-10

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-0483 CVE-2018-0449
CWE-ID	CWE-79 CWE-264
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Cisco Jabber Client/Desktop applications / Messaging software Cisco Jabber Client Framework Server applications / Frameworks for developing and running applications
Vendor	Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU16899

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0483

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote authenticated attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Jabber: 10.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-jcf-im-xss

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.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU16900

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0449

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local attacker to escalate privileges on the system.

The vulnerability exists due to insecure directory permissions set on a JCF created directory. A local attacker with the ability to access an affected directory can create a hard link to an arbitrary location, convince another user that has administrative privileges to perform an install or update the Cisco Jabber for Mac client to perform such actions, allowing files to be created in an arbitrary location on the disk or an arbitrary file to be corrupted when it is appended to or overwritten.