Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-1311 |
CWE-ID | CWE-307 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cisco Webex Meetings Server applications / Conferencing, Collaboration and VoIP solutions Cisco WebEx Meetings Server Server applications / Conferencing, Collaboration and VoIP solutions |
Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU49574
Risk: Medium
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-1311
CWE-ID:
CWE-307 - Improper Restriction of Excessive Authentication Attempts
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to the system.
The vulnerability exists due to a lack of protection against brute forcing of the host key in the reclaim host role feature. A remote authenticated attacker can send specially crafted requests, launch a brute-force authentication attack and acquire or take over the host role for a meeting.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Webex Meetings: 40.10.1
Cisco WebEx Meetings Server: 3.0MR3 Patch 5 - 4.0MR3 Patch 4
External linksQ & 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.