CVE-2017-12293 Denial of service in Cisco WebEx Meetings Server

What is CVE-2017-12293?

CVE-2017-12293 is a high-severity denial of service vulnerability in Cisco Webex Meetings Server, published on 19 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient limitations on the number of connections that can be made to the affected software. An attacker could exploit this vulnerability by opening multiple connections to the server and exhausting server resources. A successful exploit could cause the server to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf41006.

Weakness: CWE-400, CWE-119

Which versions are affected by CVE-2017-12293?

It affects 1 product.

Products include Cisco Webex Meetings Server.

How do I fix CVE-2017-12293?

No fix has been published for CVE-2017-12293 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-12293 being exploited?

There is no known exploitation of CVE-2017-12293 in the wild and no public exploit code.

Other vulnerabilities in Cisco Webex Meetings Server

• CVE-2017-12367 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players Critical 9.6
• CVE-2015-0589 Command injection in n/a Critical 9.0
• CVE-2017-3794 Cross-site request forgery in Cisco WebEx Meetings Server 2.6 High 8.8
• CVE-2016-1448 Cross-site request forgery in n/a High 8.8
• CVE-2016-1446 SQL injection in n/a High 8.8

All Cisco Webex Meetings Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6ww8-jvpr-225p.