CVE-2018-0449: Cisco Jabber Client Framework Insecure Directory Permissions Vulnerability
First published: Wed Jan 09 2019(Updated: )
A vulnerability in the Cisco Jabber Client Framework (JCF) software, installed as part of the Cisco Jabber for Mac client, could allow an authenticated, local attacker to corrupt arbitrary files on an affected device that has elevated privileges. The vulnerability exists due to insecure directory permissions set on a JCF created directory. An authenticated attacker with the ability to access an affected directory could create a hard link to an arbitrary location on the affected system. An attacker could 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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Jabber | =12.1\(0\) |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Cisco Jabber vulnerability?
The vulnerability ID for this Cisco Jabber vulnerability is CVE-2018-0449.
What is the severity of CVE-2018-0449?
The severity of CVE-2018-0449 is medium with a CVSS score of 4.2.
How can an attacker exploit this vulnerability?
An attacker with elevated privileges can exploit this vulnerability by corrupting arbitrary files on an affected device.
Is authentication required to exploit this vulnerability?
Yes, an attacker needs to be authenticated to exploit this vulnerability.
Is there a fix available for CVE-2018-0449?
Yes, Cisco has released a security advisory with the fix for CVE-2018-0449.
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