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AUSCERT External Security Bulletin Redistribution
ESB-2020.0810
Cisco Webex Meetings Client for MacOS Information Disclosure Vulnerability
5 March 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Webex Meetings Client
Publisher: Cisco Systems
Operating System: Mac OS
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: None
CVE Names: CVE-2020-3182
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-info-disc-OHqg982
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Webex Meetings Client for MacOS Information Disclosure Vulnerability
Priority: Medium
Advisory ID: cisco-sa-webex-info-disc-OHqg982
First Published: 2020 March 4 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvr98226
CVE-2020-3182
CWE-200
CVSS Score:
4.3 AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in the multicast DNS (mDNS) protocol configuration of Cisco
Webex Meetings Client for MacOS could allow an unauthenticated adjacent
attacker to obtain sensitive information about the device on which the
Webex client is running.
The vulnerability exists because sensitive information is included in the
mDNS reply. An attacker could exploit this vulnerability by doing an mDNS
query for a particular service against an affected device. A successful
exploit could allow the attacker to gain access to sensitive information.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-webex-info-disc-OHqg982
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco Webex
Meetings Client for MacOS releases 40.1.8.5 and earlier.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o When considering software upgrades , customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories and Alerts page , to determine exposure and a
complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
providers.
Fixed Releases
For information about fixed software releases, see the Details section in
the bug ID(s) at the top of this advisory.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerability that is
described in this advisory.
Source
o Cisco would like to thank HD Moore of Rumble Network Discovery for
reporting this vulnerability.
Cisco Security Vulnerability Policy
o To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy . This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-webex-info-disc-OHqg982
Revision History
o +---------+--------------------------+---------+--------+----------------+
| Version | Description | Section | Status | Date |
+---------+--------------------------+---------+--------+----------------+
| 1.0 | Initial public release. | - | Final | 2020-March-04 |
+---------+--------------------------+---------+--------+----------------+
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