CVE-2018-15508 — Five9 Agent Desktop Plus 10

Five9 Agent Desktop Plus 10.0.70 has Incorrect Access Control allowing a remote attackers to cause a denial of service via opening a connection on port 8083 to a device running the Five9 SoftPhone(issue 1 of 2).

01What is this vulnerability?

Five9 Agent Desktop Plus 10.0.70 has Incorrect Access Control allowing a remote attackers to cause a denial of service via opening a connection on port 8083 to a device running the Five9 SoftPhone(issue 1 of 2).

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-03-15T22:00:00.000Z
• Last modified: 2024-08-05T09:54:03.584Z

09References

• 0tkombo.wixsite.com — https://0tkombo.wixsite.com/0tkombo/blog/five9-dos-websocket-access